diff --git a/tests/balance/budget-sorting.test b/tests/balance/budget-sorting.test
index a7fe8c6af..5ec602466 100644
--- a/tests/balance/budget-sorting.test
+++ b/tests/balance/budget-sorting.test
@@ -36,9 +36,9 @@
     assets:cash
 
 $ hledger -f- bal --budget -DTN
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03                 Total 
+                  ||           2016-12-01            2016-12-02            2016-12-03                 Total 
 ==================++========================================================================================
  assets           || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25]  $-75 [ 100% of $-75] 
  assets:cash      || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25]  $-75 [ 100% of $-75] 
@@ -82,9 +82,9 @@ account expenses:leisure
     assets:cash
 
 $ hledger -f- bal --budget -DTN
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03                 Total 
+                  ||           2016-12-01            2016-12-02            2016-12-03                 Total 
 ==================++========================================================================================
  expenses         ||  $10 [  40% of  $25]   $14 [  56% of  $25]   $51 [ 204% of  $25]   $75 [ 100% of  $75] 
  expenses:leisure ||    0 [   0% of  $15]    $5 [  33% of  $15]     0 [   0% of  $15]    $5 [  11% of  $45] 
@@ -94,9 +94,9 @@ Budget performance in 2016/12/01-2016/12/03:
 
 # # 2. -E
 # $ hledger bal -D -b 2016-12-01 -e 2016-12-04 -f - --budget -E
-# Budget performance in 2016/12/01-2016/12/03:
+# Budget performance in 2016-12-01-2016-12-03:
 
-#                               ||               2016/12/01                2016/12/02                2016/12/03 
+#                               ||               2016-12-01                2016-12-02                2016-12-03 
 # ==============================++==============================================================================
 #  <unbudgeted>:expenses:cab    ||       0                         0                       $15                  
 #  <unbudgeted>:expenses:movies ||       0                         0                       $25                  
@@ -142,9 +142,9 @@ Budget performance in 2016/12/01-2016/12/03:
 #     assets:cash
 
 # $ hledger bal -D -b 2016-12-01 -e 2016-12-04 -f - --budget
-# Budget performance in 2016/12/01-2016/12/03:
+# Budget performance in 2016-12-01-2016-12-03:
 
-#                   ||                 2016/12/01                     2016/12/02                2016/12/03 
+#                   ||                 2016-12-01                     2016-12-02                2016-12-03 
 # ==================++=====================================================================================
 #  <unbudgeted>     ||         0                              0                       $40                  
 #  assets:cash      ||      $-15 [  60% of  $-25]          $-26 [ 104% of  $-25]     $-51 [ 204% of  $-25] 
@@ -156,9 +156,9 @@ Budget performance in 2016/12/01-2016/12/03:
 #** Sort by actual amount, flat mode.
 
 $ hledger -f- bal --budget -DTNS
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03                 Total 
+                  ||           2016-12-01            2016-12-02            2016-12-03                 Total 
 ==================++========================================================================================
  expenses         ||  $10 [  40% of  $25]   $14 [  56% of  $25]   $51 [ 204% of  $25]   $75 [ 100% of  $75] 
  expenses:food    ||  $10 [ 100% of  $10]    $9 [  90% of  $10]   $11 [ 110% of  $10]   $30 [ 100% of  $30] 
@@ -169,9 +169,9 @@ Budget performance in 2016/12/01-2016/12/03:
 #** Sort by actual amount, tree mode.
 
 $ hledger -f- bal --budget -DTNS --tree
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-           ||           2016/12/01            2016/12/02            2016/12/03                 Total 
+           ||           2016-12-01            2016-12-02            2016-12-03                 Total 
 ===========++========================================================================================
  expenses  ||  $10 [  40% of  $25]   $14 [  56% of  $25]   $51 [ 204% of  $25]   $75 [ 100% of  $75] 
    food    ||  $10 [ 100% of  $10]    $9 [  90% of  $10]   $11 [ 110% of  $10]   $30 [ 100% of  $30] 
diff --git a/tests/balance/budget.test b/tests/balance/budget.test
index af5311f81..07a183b54 100644
--- a/tests/balance/budget.test
+++ b/tests/balance/budget.test
@@ -32,9 +32,9 @@
 
 # 1. Test --budget switch
 $ hledger -f- bal -D -b 2016-12-01 -e 2016-12-04 --budget
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03 
+                  ||           2016-12-01            2016-12-02            2016-12-03 
 ==================++==================================================================
  assets           || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
  assets:cash      || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
@@ -46,9 +46,9 @@ Budget performance in 2016/12/01-2016/12/03:
 
 # 2. -E
 $ hledger -f- bal -D -b 2016-12-01 -e 2016-12-04 --budget -E
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03 
+                  ||           2016-12-01            2016-12-02            2016-12-03 
 ==================++==================================================================
  assets           || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
  assets:cash      || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
@@ -96,9 +96,9 @@ Budget performance in 2016/12/01-2016/12/03:
     assets:cash
 
 $ hledger -f- bal -D -b 2016-12-01 -e 2016-12-04 --budget
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||                 2016/12/01                    2016/12/02                  2016/12/03 
+                  ||                 2016-12-01                    2016-12-02                  2016-12-03 
 ==================++======================================================================================
  assets           ||       $-15 [  60% of $-25]          $-26 [ 104% of $-25]        $-51 [ 204% of $-25] 
  assets:cash      ||       $-15 [  60% of $-25]          $-26 [ 104% of $-25]        $-51 [ 204% of $-25] 
@@ -131,9 +131,9 @@ Budget performance in 2016/12/01-2016/12/03:
   (c)  1
 
 $ hledger -f- bal --budget
-Budget performance in 2018/01/01-2018/01/03:
+Budget performance in 2018-01-01-2018-01-03:
 
-   || 2018/01/01-2018/01/03 
+   || 2018-01-01-2018-01-03 
 ===++=======================
  a ||     2 [   7% of   30] 
  b ||     2 [   2% of  100] 
@@ -145,9 +145,9 @@ Budget performance in 2018/01/01-2018/01/03:
 # Budget goals with lower frequency than the report are posted in the 
 # appropriate intermittent periods. 
 $ hledger -f- bal --budget -D
-Budget performance in 2018/01/01-2018/01/03:
+Budget performance in 2018-01-01-2018-01-03:
 
-   ||        2018/01/01         2018/01/02         2018/01/03 
+   ||        2018-01-01         2018-01-02         2018-01-03 
 ===++=========================================================
  a || 1 [  10% of   10]  0 [   0% of   10]  1 [  10% of   10] 
  b || 1 [   1% of  100]  0 [            0]  1 [            0] 
@@ -157,9 +157,9 @@ Budget performance in 2018/01/01-2018/01/03:
 
 # 6. Budget goals with higher frequency than the report get added up appropriately.
 $ hledger -f- bal --budget -W
-Budget performance in 2018/01/01w01:
+Budget performance in 2018-01-01w01:
 
-   ||     2018/01/01w01 
+   ||     2018-01-01w01 
 ===++===================
  a || 2 [   7% of   30] 
  b || 2 [   2% of  100] 
@@ -189,9 +189,9 @@ Budget performance in 2018/01/01w01:
   (b)  1
 
 $ hledger -f- bal --budget -D
-Budget performance in 2018/01/01-2018/01/04:
+Budget performance in 2018-01-01-2018-01-04:
 
-              ||     2018/01/01      2018/01/02      2018/01/03      2018/01/04 
+              ||     2018-01-01      2018-01-02      2018-01-03      2018-01-04 
 ==============++================================================================
  <unbudgeted> || 1               1               1               1              
  a            || 1               1 [ 100% of 1]  1 [ 100% of 1]  1              
@@ -219,9 +219,9 @@ Budget performance in 2018/01/01-2018/01/04:
   (a)  1
 
 $ hledger -f- bal --budget -D
-Budget performance in 2018/01/01-2018/01/04:
+Budget performance in 2018-01-01-2018-01-04:
 
-   ||      2018/01/01       2018/01/02       2018/01/03       2018/01/04 
+   ||      2018-01-01       2018-01-02       2018-01-03       2018-01-04 
 ===++====================================================================
  a || 1 [ 100% of  1]  1 [ 100% of  1]  1 [  10% of 10]  1 [  10% of 10] 
 ---++--------------------------------------------------------------------
@@ -229,9 +229,9 @@ Budget performance in 2018/01/01-2018/01/04:
 
 # 9. A "from A to B" budget should not be included in a report beginning on B.
 $ hledger -f- bal --budget -D -b 2018/1/3
-Budget performance in 2018/01/03-2018/01/04:
+Budget performance in 2018-01-03-2018-01-04:
 
-   ||      2018/01/03       2018/01/04 
+   ||      2018-01-03       2018-01-04 
 ===++==================================
  a || 1 [  10% of 10]  1 [  10% of 10] 
 ---++----------------------------------
@@ -251,9 +251,9 @@ Budget performance in 2018/01/03-2018/01/04:
 # even if there are no actual transactions in the period,
 # or if the actual amount is zero.
 $ hledger -f- bal --budget -D date:2018/1/1-2018/1/3
-Budget performance in 2018/01/01-2018/01/02:
+Budget performance in 2018-01-01-2018-01-02:
 
-   ||     2018/01/01      2018/01/02 
+   ||     2018-01-01      2018-01-02 
 ===++================================
  a || 0 [   0% of 1]  0 [   0% of 1] 
 ---++--------------------------------
@@ -261,9 +261,9 @@ Budget performance in 2018/01/01-2018/01/02:
 
 # 11. With -E, zeroes are shown
 $ hledger -f- bal --budget -D date:2018/1/1-2018/1/3 -E
-Budget performance in 2018/01/01-2018/01/02:
+Budget performance in 2018-01-01-2018-01-02:
 
-   ||     2018/01/01      2018/01/02 
+   ||     2018-01-01      2018-01-02 
 ===++================================
  a || 0 [   0% of 1]  0 [   0% of 1] 
 ---++--------------------------------
@@ -278,9 +278,9 @@ Budget performance in 2018/01/01-2018/01/02:
   (a:b)    1
 
 $ hledger -f- bal --budget -N
-Budget performance in 2018/01/01:
+Budget performance in 2018-01-01:
 
-   ||     2018/01/01 
+   ||     2018-01-01 
 ===++================
  a || 1 [ 100% of 1] 
 
@@ -295,9 +295,9 @@ Budget performance in 2018/01/01:
   (a:b:c)      1
 
 $ hledger -f- bal --budget
-Budget performance in 2018/01/01:
+Budget performance in 2018-01-01:
 
-       ||       2018/01/01 
+       ||       2018-01-01 
 =======++==================
  a     || 2 [   2% of 101] 
  a:b   || 1 [ 100% of   1] 
@@ -307,9 +307,9 @@ Budget performance in 2018/01/01:
 
 # 14. tree mode
 $ hledger -f- bal --budget --tree
-Budget performance in 2018/01/01:
+Budget performance in 2018-01-01:
 
-       ||       2018/01/01 
+       ||       2018-01-01 
 =======++==================
  a     || 2 [   2% of 101] 
    b   || 1 [ 100% of   1] 
@@ -338,7 +338,7 @@ P 2018/01/26 SHARE €10
     assets:bank
 
 $ hledger -f - bal -M --budget --cumulative --forecast -V
-Budget performance in 2018/05/01-2018/06/30, valued at period ends:
+Budget performance in 2018-05-01-2018-06-30, valued at period ends:
 
                 ||                 May                  Jun 
 ================++==========================================
@@ -368,9 +368,9 @@ Budget performance in 2018/05/01-2018/06/30, valued at period ends:
     liabilities                           $-30.00
 
 $ hledger -f- bal --budget
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                   ||        2019/01/01-2019/01/03 
+                   ||        2019-01-01-2019-01-03 
 ===================++==============================
  expenses          ||  $50.00 [   5% of $1,000.00] 
  expenses:personal ||  $50.00 [   5% of $1,000.00] 
@@ -380,9 +380,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 17.
 $ hledger -f- bal --budget -E
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                                        ||        2019/01/01-2019/01/03 
+                                        ||        2019-01-01-2019-01-03 
 ========================================++==============================
  expenses                               ||  $50.00 [   5% of $1,000.00] 
  expenses:personal                      ||  $50.00 [   5% of $1,000.00] 
@@ -394,9 +394,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 18.
 $ hledger -f- bal --budget --tree
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-             ||        2019/01/01-2019/01/03 
+             ||        2019-01-01-2019-01-03 
 =============++==============================
  expenses    ||  $50.00 [   5% of $1,000.00] 
    personal  ||  $50.00 [   5% of $1,000.00] 
@@ -406,9 +406,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 19.
 $ hledger -f- bal --budget --tree -E
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                 ||        2019/01/01-2019/01/03 
+                 ||        2019-01-01-2019-01-03 
 =================++==============================
  expenses        ||  $50.00 [   5% of $1,000.00] 
    personal      ||  $50.00 [   5% of $1,000.00] 
@@ -438,9 +438,9 @@ Budget performance in 2019/01/01-2019/01/03:
     liabilities                           $-30.00
 
 $ hledger -f- bal --budget
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                               ||        2019/01/01-2019/01/03 
+                               ||        2019-01-01-2019-01-03 
 ===============================++==============================
  expenses                      ||  $50.00 [   5% of  $1100.00] 
  expenses:personal             ||  $50.00 [   5% of  $1100.00] 
@@ -451,9 +451,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 21.
 $ hledger -f- bal --budget -E
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                                        ||        2019/01/01-2019/01/03 
+                                        ||        2019-01-01-2019-01-03 
 ========================================++==============================
  expenses                               ||  $50.00 [   5% of  $1100.00] 
  expenses:personal                      ||  $50.00 [   5% of  $1100.00] 
@@ -465,9 +465,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 22.
 $ hledger -f- bal --budget --tree
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                 ||        2019/01/01-2019/01/03 
+                 ||        2019-01-01-2019-01-03 
 =================++==============================
  expenses        ||  $50.00 [   5% of  $1100.00] 
    personal      ||  $50.00 [   5% of  $1100.00] 
@@ -478,9 +478,9 @@ Budget performance in 2019/01/01-2019/01/03:
 
 # 23.
 $ hledger -f- bal --budget --tree -E
-Budget performance in 2019/01/01-2019/01/03:
+Budget performance in 2019-01-01-2019-01-03:
 
-                 ||        2019/01/01-2019/01/03 
+                 ||        2019-01-01-2019-01-03 
 =================++==============================
  expenses        ||  $50.00 [   5% of  $1100.00] 
    personal      ||  $50.00 [   5% of  $1100.00] 
@@ -515,9 +515,9 @@ Budget performance in 2019/01/01-2019/01/03:
 # By default it hides d (because no budget) and e (because zero posted amount).
 # f is shown though its budget is zero, it probably shouldn't be.
 $ hledger bal -f- --budget 
-Budget performance in 2019/01/01-2019/01/02:
+Budget performance in 2019-01-01-2019-01-02:
 
-                  || 2019/01/01-2019/01/02 
+                  || 2019-01-01-2019-01-02 
 ==================++=======================
  expenses         ||  $80 [  22% of  $370] 
  expenses:bills   ||  $80 [  22% of  $370] 
@@ -532,9 +532,9 @@ Budget performance in 2019/01/01-2019/01/02:
 
 # 25. -E shows d
 $ hledger bal -f- --budget -E
-Budget performance in 2019/01/01-2019/01/02:
+Budget performance in 2019-01-01-2019-01-02:
 
-                  || 2019/01/01-2019/01/02 
+                  || 2019-01-01-2019-01-02 
 ==================++=======================
  expenses         ||  $80 [  22% of  $370] 
  expenses:bills   ||  $80 [  22% of  $370] 
diff --git a/tests/balance/intervals.test b/tests/balance/intervals.test
index d913569db..133fbd4dd 100644
--- a/tests/balance/intervals.test
+++ b/tests/balance/intervals.test
@@ -253,7 +253,7 @@ hledger -f- balance -p 'monthly 2014/1/10-2014/2/20'
  (after)  1
 
 >>>
-Balance changes in 2014/01/01-2014/02/28:
+Balance changes in 2014-01-01-2014-02-28:
 
         || Jan  Feb 
 ========++==========
diff --git a/tests/balance/percent.test b/tests/balance/percent.test
index 5c54d509a..4d6666580 100644
--- a/tests/balance/percent.test
+++ b/tests/balance/percent.test
@@ -12,9 +12,9 @@ hledger -f sample.journal balance expenses -%
 # 2. Multi column percent
 hledger -f sample.journal balance expenses -% -p daily
 >>>
-Balance changes in 2008/06/03:
+Balance changes in 2008-06-03:
 
-                   || 2008/06/03 
+                   || 2008-06-03 
 ===================++============
  expenses:food     ||     50.0 % 
  expenses:supplies ||     50.0 % 
diff --git a/tests/balance/pretty.test b/tests/balance/pretty.test
index 8eecb8820..bb8d3c0f3 100644
--- a/tests/balance/pretty.test
+++ b/tests/balance/pretty.test
@@ -1,6 +1,6 @@
 hledger -f balance-multicol.journal balance --pretty-tables -M
 >>>
-Balance changes in 2012/12/01-2013/03/31:
+Balance changes in 2012-12-01-2013-03-31:
 
                  ║ Dec  Jan  Feb  Mar 
 ═════════════════╬════════════════════
diff --git a/tests/balance/transpose.test b/tests/balance/transpose.test
index 2d4cb1f79..a8964e922 100644
--- a/tests/balance/transpose.test
+++ b/tests/balance/transpose.test
@@ -1,6 +1,6 @@
 hledger -f balance-multicol.journal balance -M -A --transpose
 >>>
-Balance changes in 2012/12/01-2013/03/31:
+Balance changes in 2012-12-01-2013-03-31:
 
          || assets  assets:cash  assets:checking |    
 =========++======================================+====
@@ -53,9 +53,9 @@ hledger bal -D -b 2016-12-01 -e 2016-12-04 -f - --budget
     expenses:leisure  $15
     assets:cash
 >>>
-Budget performance in 2016/12/01-2016/12/03:
+Budget performance in 2016-12-01-2016-12-03:
 
-                  ||           2016/12/01            2016/12/02            2016/12/03 
+                  ||           2016-12-01            2016-12-02            2016-12-03 
 ==================++==================================================================
  assets           || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
  assets:cash      || $-10 [  40% of $-25]  $-14 [  56% of $-25]  $-51 [ 204% of $-25] 
diff --git a/tests/cashflow.test b/tests/cashflow.test
index e911a4428..9436af4b0 100644
--- a/tests/cashflow.test
+++ b/tests/cashflow.test
@@ -5,9 +5,9 @@ hledger -f - cashflow
   assets  1
   b
 >>>
-Cashflow Statement 2016/01/01
+Cashflow Statement 2016-01-01
 
-            || 2016/01/01 
+            || 2016-01-01 
 ============++============
  Cash flows ||            
 ------------++------------
@@ -75,9 +75,9 @@ hledger -f - cashflow -b 2015 -e 2017
     assets:checking             $10.00
     assets:receivables         -$10.00
 >>>
-Cashflow Statement 2015/01/01-2016/12/31
+Cashflow Statement 2015-01-01-2016-12-31
 
-                 || 2015/01/01-2016/12/31 
+                 || 2015-01-01-2016-12-31 
 =================++=======================
  Cash flows      ||                       
 -----------------++-----------------------
@@ -229,9 +229,9 @@ hledger -f - cashflow
   assets:fixed assets:equipment  1
   b
 >>>
-Cashflow Statement 2016/01/01
+Cashflow Statement 2016-01-01
 
-            || 2016/01/01 
+            || 2016-01-01 
 ============++============
  Cash flows ||            
 ------------++------------
diff --git a/tests/cli/multiple-files.test b/tests/cli/multiple-files.test
index 79220c277..69ba0f3c4 100644
--- a/tests/cli/multiple-files.test
+++ b/tests/cli/multiple-files.test
@@ -1,9 +1,9 @@
 # 1. all data files on the command line should be read
 hledger inc -f personal.journal -f business.journal
 >>>
-Income Statement 2014/01/01-2014/01/02
+Income Statement 2014-01-01-2014-01-02
 
-                          || 2014/01/01-2014/01/02 
+                          || 2014-01-01-2014-01-02 
 ==========================++=======================
  Revenues                 ||                       
 --------------------------++-----------------------
diff --git a/tests/cli/report-interval.test b/tests/cli/report-interval.test
index a7fd0112d..fb0b34baa 100644
--- a/tests/cli/report-interval.test
+++ b/tests/cli/report-interval.test
@@ -17,14 +17,14 @@ $ hledger -f- register --weekly --monthly
 2019/02                 a                                        1             3
 
 $ hledger -f- register --monthly --weekly
-2018/12/31w01           a                                        2             2
-2019/01/28w05           a                                        1             3
+2018-12-31w01           a                                        2             2
+2019-01-28w05           a                                        1             3
 
 # The last report interval option takes precedence.
 # The --period expression is no exception.
 $ hledger -f- register -p 'monthly in 2019' --weekly
-2018/12/31w01           a                                        2             2
-2019/01/28w05           a                                        1             3
+2018-12-31w01           a                                        2             2
+2019-01-28w05           a                                        1             3
 
 $ hledger -f- register --weekly -p 'monthly in 2019'
 2019/01                 a                                        2             2
diff --git a/tests/forecast.test b/tests/forecast.test
index 8400541a9..d0aa35fd0 100644
--- a/tests/forecast.test
+++ b/tests/forecast.test
@@ -16,7 +16,7 @@ hledger bal -M -b 2016-11 -e 2017-02 -f - --forecast
     expenses:grocery  $30
     assets:cash
 >>>
-Balance changes in 2016/12/01-2017/01/31:
+Balance changes in 2016-12-01-2017-01-31:
 
                   ||   Dec     Jan 
 ==================++===============
diff --git a/tests/incomestatement.test b/tests/incomestatement.test
index 360e4bdf9..71c0d7797 100644
--- a/tests/incomestatement.test
+++ b/tests/incomestatement.test
@@ -5,9 +5,9 @@ hledger -f - incomestatement
   income  1
   b
 >>>
-Income Statement 2016/01/01
+Income Statement 2016-01-01
 
-          || 2016/01/01 
+          || 2016-01-01 
 ==========++============
  Revenues ||            
 ----------++------------
@@ -90,9 +90,9 @@ hledger -f - incomestatement -b 2015 -e 2017
     assets:checking             $10.00
     assets:receivables         -$10.00
 >>>
-Income Statement 2015/01/01-2016/12/31
+Income Statement 2015-01-01-2016-12-31
 
-                   || 2015/01/01-2016/12/31 
+                   || 2015-01-01-2016-12-31 
 ===================++=======================
  Revenues          ||                       
 -------------------++-----------------------
diff --git a/tests/journal/valuation.test b/tests/journal/valuation.test
index d5cdcdeb5..8d73ad144 100644
--- a/tests/journal/valuation.test
+++ b/tests/journal/valuation.test
@@ -413,7 +413,7 @@ Balance changes in 2000q1, valued at period ends:
 # February adds 1 A costing 7 B, making 13 B.
 # March adds 1 A costing 8 B, making 21 B.
 $ hledger -f- bal -M -H -b 200002 --value=cost
-Ending balances (historical) in 2000/02/01-2000/03/31, valued at cost:
+Ending balances (historical) in 2000-02-01-2000-03-31, valued at cost:
 
    || 2000-02-29  2000-03-31 
 ===++========================
@@ -426,7 +426,7 @@ Ending balances (historical) in 2000/02/01-2000/03/31, valued at cost:
 # February adds 1 A making 2 A, which is valued at 2000/02/29 as 4 B.
 # March adds 1 A making 3 A, which is valued at 2000/03/31 as 9 B.
 $ hledger -f- bal -MA -H -b 200002 --value=end
-Ending balances (historical) in 2000/02/01-2000/03/31, valued at period ends:
+Ending balances (historical) in 2000-02-01-2000-03-31, valued at period ends:
 
    || 2000-02-29  2000-03-31  Average 
 ===++=================================
@@ -437,7 +437,7 @@ Ending balances (historical) in 2000/02/01-2000/03/31, valued at period ends:
 # 40. multicolumn balance report with -H valued at other date.
 # The starting balance is 5 B (1 A valued at 2000/1/15).
 $ hledger -f- bal -M -H -b 200002 --value=2000-01-15
-Ending balances (historical) in 2000/02/01-2000/03/31, valued at 2000-01-15:
+Ending balances (historical) in 2000-02-01-2000-03-31, valued at 2000-01-15:
 
    || 2000-02-29  2000-03-31 
 ===++========================
diff --git a/tests/pivot.test b/tests/pivot.test
index 47768f203..da2d6d0f0 100644
--- a/tests/pivot.test
+++ b/tests/pivot.test
@@ -132,7 +132,7 @@ hledger -f- --pivot payee reg -D ^expense
     assets:bank account
     expense:grocery                    30 EUR
 >>>
-2016/02/16              Auchan                              22 EUR        22 EUR
+2016-02-16              Auchan                              22 EUR        22 EUR
                         StarBars                             5 EUR        27 EUR
-2016/02/17              Auchan                              30 EUR        57 EUR
+2016-02-17              Auchan                              30 EUR        57 EUR
 >>>=0
diff --git a/tests/register/depth.test b/tests/register/depth.test
index fabf3a059..8221f33d3 100644
--- a/tests/register/depth.test
+++ b/tests/register/depth.test
@@ -43,8 +43,8 @@ hledger -f - register aa --depth 1 --daily
   a:aa      1
   b:bb:bbb
 >>>
-2010/01/01              a                                        2             2
-2010/01/02              a                                        1             3
+2010-01-01              a                                        2             2
+2010-01-02              a                                        1             3
 >>>=0
 
 # 4. with --cleared
@@ -75,7 +75,7 @@ hledger -f - register --depth 0 --daily a b
   b:bb      2
   c:cc
 >>>
-2010/01/01              ...                                      6             6
-2010/01/02              ...                                      3             9
+2010-01-01              ...                                      6             6
+2010-01-02              ...                                      3             9
 >>>=0