diff --git a/glances/globals.py b/glances/globals.py
index e3cd9a8f..e41c2e6d 100644
--- a/glances/globals.py
+++ b/glances/globals.py
@@ -24,7 +24,6 @@ import re
 import subprocess
 import sys
 import weakref
-from collections import OrderedDict
 from configparser import ConfigParser, NoOptionError, NoSectionError
 from datetime import datetime
 from operator import itemgetter, methodcaller
@@ -276,53 +275,6 @@ def safe_makedirs(path):
             raise
 
 
-def get_diff_time(time):
-    now = datetime.now()
-    cond = {
-        isinstance(time, int): now - datetime.fromtimestamp(time),
-        isinstance(time, datetime): now - time,
-        not time: 0,
-    }
-
-    return cond.get(True)
-
-
-def get_msg_for_true_cond(conds):
-    return next(val for key, val in conds if key)
-
-
-def get_conds_for_sec_diff_msg(diff):
-    second_diff = diff.seconds
-
-    return OrderedDict(
-        {
-            second_diff < 10: "just now",
-            second_diff < 60: str(second_diff) + " secs",
-            second_diff < 120: "a min",
-            second_diff < 3600: str(second_diff // 60) + " mins",
-            second_diff < 7200: "an hour",
-            second_diff < 86400: str(second_diff // 3600) + " hours",
-        }
-    )
-
-
-def get_conds_for_day_diff_msg(diff):
-    day_diff = diff.days
-    second_diff_msgs = get_conds_for_sec_diff_msg(diff)
-
-    return OrderedDict(
-        {
-            day_diff < 0: '',
-            day_diff == 0: get_msg_for_true_cond(second_diff_msgs),
-            day_diff == 1: "yesterday",
-            day_diff < 7: str(day_diff) + " days",
-            day_diff < 31: str(day_diff // 7) + " weeks",
-            day_diff < 365: str(day_diff // 30) + " months",
-            day_diff >= 365: str(day_diff // 365) + " years",
-        }
-    )
-
-
 def pretty_date(time=False):
     """
     Get a datetime object or a int() Epoch timestamp and return a
@@ -330,10 +282,41 @@ def pretty_date(time=False):
     'just now', etc
     Source: https://stackoverflow.com/questions/1551382/user-friendly-time-format-in-python
     """
-    diff = get_diff_time(time)
-    day_diff_msgs = get_conds_for_day_diff_msg(diff)
+    now = datetime.now()
+    if isinstance(time, int):
+        diff = now - datetime.fromtimestamp(time)
+    elif isinstance(time, datetime):
+        diff = now - time
+    elif not time:
+        diff = 0
+    second_diff = diff.seconds
+    day_diff = diff.days
 
-    return get_msg_for_true_cond(day_diff_msgs)
+    if day_diff < 0:
+        return ''
+
+    if day_diff == 0:
+        if second_diff < 10:
+            return "just now"
+        if second_diff < 60:
+            return str(second_diff) + " secs"
+        if second_diff < 120:
+            return "a min"
+        if second_diff < 3600:
+            return str(second_diff // 60) + " mins"
+        if second_diff < 7200:
+            return "an hour"
+        if second_diff < 86400:
+            return str(second_diff // 3600) + " hours"
+    if day_diff == 1:
+        return "yesterday"
+    if day_diff < 7:
+        return str(day_diff) + " days"
+    if day_diff < 31:
+        return str(day_diff // 7) + " weeks"
+    if day_diff < 365:
+        return str(day_diff // 30) + " months"
+    return str(day_diff // 365) + " years"
 
 
 def urlopen_auth(url, username, password):