I have a timestamp coming in, I wonder if there's a way to round it down to the start of a day in PST. For example, ts: 1305861602 corresponds to 2016-04-14, 21:10:27 -0700, but I want to round it to a timestamp that maps to 2016-04-14 00:00:00 -0700. I read through the time.Time doc but didn't find a way to do it.
The simple way to do this is to create new Time using the previous one and only assigning the year month and day. It would look like this;
rounded := time.Date(toRound.Year(), toRound.Month(), toRound.Day(), 0, 0, 0, 0, toRound.Location())
here's a play example; https://play.golang.org/p/jnFuZxruKm
You can simply use duration 24 * time.Hour to truncate time.
t := time.Date(2015, 4, 2, 0, 15, 30, 918273645, time.UTC)
d := 24 * time.Hour
t.Truncate(d)