I'm working on an app which has its config.time_zone = 'Kolkata' (which is UTC +5:30), I'm trying to save the time for a particular object in EST/EDT (UTC -5:00/-4:00) from the ActiveAdmin panel.
Since it involves daylight savings, I'd rather not resort to manual calculations and transform the ActiveSupport::TimeWithZone object from UTC +530 into UTC -400. Is it possible to just change the zone part of a TimeWithZone object without converting it?
P.S. I did come across this question. But it isn't have the answer I'm looking for.(one of the comments even mention it)
12 Answers
I've been scouring the internet for solutions to a similar problem that you've described and amazed that I couldn't find one. I eventually stumbled upon the TimeWithZone#change method when reading through the docs
So if you just want to adjust the Zone without changing the Time, you can do
time.change(zone: "Eastern Time (US & Canada)") and change it back to UTC again after the conversion if you like
time.change(zone: "Eastern Time (US & Canada)").in_time_zone("UTC") It is recommended that all datetime objects should always be stored in UTC -0000, as said here. If yet you want to convert it to do some calculations, use the utc_offset method or convert both objects to UTC by using the utc method, as seen here.
