#Ruby or #Rails で unixtimestamp の数値を Time.zone の日時に変換する

[YumaInaura]

In Ruby need require

 require 'active_support/core_ext'

Time

Time.at(1580655600)
# => 2020-02-02 15:00:00 +0000

Timezone UTC

Time.use_zone('UTC') { Time.zone.at(1580655600) }
# => Sun, 02 Feb 2020 15:00:00 UTC +00:00

Timezone JST

Time.use_zone('Tokyo') { Time.zone.at(1580655600) }
# => Mon, 03 Feb 2020 00:00:00 JST +09:00