diff --git a/doc/manual.md b/doc/manual.md
index 7225b8b52..390a240c5 100644
--- a/doc/manual.md
+++ b/doc/manual.md
@@ -736,10 +736,10 @@ and creates a virtual transaction (or several - one per day) with the
 appropriate amount of hours. From the time log above, hledger print gives:
 
     2009/03/31 * 22:21-23:59
-        (projects:A)          1.6h
+        (projects:A)         1.64h
     
     2009/04/01 * 00:00-02:00
-        (projects:A)          2.0h
+        (projects:A)         2.01h
 
 Here is a
 [sample.timelog](https://raw.github.com/simonmichael/hledger/master/data/sample.timelog) to
diff --git a/hledger-lib/Hledger/Data/Amount.hs b/hledger-lib/Hledger/Data/Amount.hs
index 6974e38ac..3ff317c26 100644
--- a/hledger-lib/Hledger/Data/Amount.hs
+++ b/hledger-lib/Hledger/Data/Amount.hs
@@ -155,10 +155,10 @@ missingamt = amount{acommodity="AUTO"}
 -- Handy amount constructors for tests.
 -- usd/eur/gbp round their argument to a whole number of pennies/cents.
 num n = amount{acommodity="",  aquantity=n}
+hrs n = amount{acommodity="h", aquantity=n,           astyle=amountstyle{asprecision=2, ascommodityside=R}}
 usd n = amount{acommodity="$", aquantity=roundTo 2 n, astyle=amountstyle{asprecision=2}}
 eur n = amount{acommodity="€", aquantity=roundTo 2 n, astyle=amountstyle{asprecision=2}}
 gbp n = amount{acommodity="£", aquantity=roundTo 2 n, astyle=amountstyle{asprecision=2}}
-hrs n = amount{acommodity="h", aquantity=roundTo 1 n, astyle=amountstyle{asprecision=1, ascommodityside=R}}
 amt `at` priceamt = amt{aprice=UnitPrice priceamt}
 amt @@ priceamt = amt{aprice=TotalPrice priceamt}
 
diff --git a/hledger-lib/Hledger/Data/Transaction.hs b/hledger-lib/Hledger/Data/Transaction.hs
index 599df603f..a97d3c039 100644
--- a/hledger-lib/Hledger/Data/Transaction.hs
+++ b/hledger-lib/Hledger/Data/Transaction.hs
@@ -122,7 +122,7 @@ tests_showTransactionUnelided = [
       "2012/05/14=2012/05/15 (code) desc    ; tcomment1",
       "    ; tcomment2",
       "                $1.00",
-      "    * a          2.0h",
+      "    * a         2.00h",
       "    ; pcomment2",
       ""
       ]
@@ -203,7 +203,7 @@ tests_postingAsLines = [
       }
      `gives` [
       "                $1.00",
-      "    * a          2.0h    ; pcomment1",
+      "    * a         2.00h    ; pcomment1",
       "    ; pcomment2",
       "    ;   tag3: val3  "
       ]
diff --git a/hledger/Hledger/Cli.hs b/hledger/Hledger/Cli.hs
index 6d0c1ef65..71c7ea71b 100644
--- a/hledger/Hledger/Cli.hs
+++ b/hledger/Hledger/Cli.hs
@@ -132,7 +132,7 @@ tests_Hledger_Cli = TestList
 
   ,"show dollars" ~: showAmount (usd 1) ~?= "$1.00"
 
-  ,"show hours" ~: showAmount (hrs 1) ~?= "1.0h"
+  ,"show hours" ~: showAmount (hrs 1) ~?= "1.00h"
 
  ]
 
diff --git a/tests/timelog/timelog.test b/tests/timelog/timelog.test
index a366d1f0f..9e9b35194 100644
--- a/tests/timelog/timelog.test
+++ b/tests/timelog/timelog.test
@@ -6,7 +6,7 @@ o 2009/1/1 09:00:00
 
 >>>
 2009/01/01 * 08:00-09:00
-    (something)          1.0h
+    (something)         1.00h
 
 >>>2
 >>>= 0