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-rw-r--r--activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb16
1 files changed, 16 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb b/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb
new file mode 100644
index 0000000000..d33c36ef73
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require "active_support/core_ext/module/attribute_accessors"
+
+module DateAndTime
+ module Compatibility
+ # If true, +to_time+ preserves the timezone offset of receiver.
+ #
+ # NOTE: With Ruby 2.4+ the default for +to_time+ changed from
+ # converting to the local system time, to preserving the offset
+ # of the receiver. For backwards compatibility we're overriding
+ # this behavior, but new apps will have an initializer that sets
+ # this to true, because the new behavior is preferred.
+ mattr_accessor :preserve_timezone, instance_writer: false, default: false
+ end
+end