Minimum Offset Timezone Difference Rails 5.1 and Rails 5.2

timezone_diff_Rails_5.2_Rails_5.1.md

Rails 5.1:

ActiveSupport::TimeZone.new("International Date Line West")

<ActiveSupport::TimeZone:0x0000564eac8abac8
    @name="International Date Line West",
    @tzinfo=#<TZInfo::DataTimezone: Pacific/Midway>,
    @utc_offset=nil
>

ActiveSupport::TimeZone.new("International Date Line West").parse("2020-04-18").utc_offset

=> -39600

---

Rails 5.2

ActiveSupport::TimeZone.new("International Date Line West")

<ActiveSupport::TimeZone:0x00007f9754cf0ad8
  @name="International Date Line West",
  @tzinfo=#<TZInfo::DataTimezone: Etc/GMT+12>,
  @utc_offset=nil
>

ActiveSupport::TimeZone.new("International Date Line West").parse("2020-04-18").utc_offset

=> -43200