1 files changed, 9 insertions, 9 deletions
diff --git a/activesupport/lib/active_support/core_ext/date_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
index 9e89a33491..70d5c9af8e 100644
--- a/activesupport/lib/active_support/core_ext/date_time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
@@ -1,4 +1,4 @@
-require 'date'
+require "date"
 
 class DateTime
   class << self
@@ -75,7 +75,7 @@ class DateTime
     end
 
     d = to_date.advance(options)
-    datetime_advanced_by_date = change(:year => d.year, :month => d.month, :day => d.day)
+    datetime_advanced_by_date = change(year: d.year, month: d.month, day: d.day)
     seconds_to_advance = \
       options.fetch(:seconds, 0) +
       options.fetch(:minutes, 0) * 60 +
@@ -104,7 +104,7 @@ class DateTime
 
   # Returns a new DateTime representing the start of the day (0:00).
   def beginning_of_day
-    change(:hour => 0)
+    change(hour: 0)
   end
   alias :midnight :beginning_of_day
   alias :at_midnight :beginning_of_day
@@ -112,7 +112,7 @@ class DateTime
 
   # Returns a new DateTime representing the middle of the day (12:00)
   def middle_of_day
-    change(:hour => 12)
+    change(hour: 12)
   end
   alias :midday :middle_of_day
   alias :noon :middle_of_day
@@ -122,31 +122,31 @@ class DateTime
 
   # Returns a new DateTime representing the end of the day (23:59:59).
   def end_of_day
-    change(:hour => 23, :min => 59, :sec => 59)
+    change(hour: 23, min: 59, sec: 59)
   end
   alias :at_end_of_day :end_of_day
 
   # Returns a new DateTime representing the start of the hour (hh:00:00).
   def beginning_of_hour
-    change(:min => 0)
+    change(min: 0)
   end
   alias :at_beginning_of_hour :beginning_of_hour
 
   # Returns a new DateTime representing the end of the hour (hh:59:59).
   def end_of_hour
-    change(:min => 59, :sec => 59)
+    change(min: 59, sec: 59)
   end
   alias :at_end_of_hour :end_of_hour
 
   # Returns a new DateTime representing the start of the minute (hh:mm:00).
   def beginning_of_minute
-    change(:sec => 0)
+    change(sec: 0)
   end
   alias :at_beginning_of_minute :beginning_of_minute
 
   # Returns a new DateTime representing the end of the minute (hh:mm:59).
   def end_of_minute
-    change(:sec => 59)
+    change(sec: 59)
   end
   alias :at_end_of_minute :end_of_minute