CODEWITHSUNDEEP
iosswift
TIMEX
TIMEX

Reputation: 271794

Comparing timestamps and working with timezones on iOS

Given a unix timestamp, how can my iOS code know if it is before or after 6am (6am = the most recent 6am that occurred)? Are there time zones involved?

Upvotes: 2

Views: 150

Answers (1)

rmaddy
rmaddy

Reputation: 318814

Convert the unix timestamp to a Date. Then use Calendar to get the DateComponents from the Date. By default, these components will be interpreted in the user's current timezone. If you wish to interpret the date in a different timezone, set the calendar's timezone before getting the components from the date.

By looking at the desired components you can make your decision about the hour.

let date = Date(timeIntervalSince1970: someUnixTimeStamp)
let components = Calendar.current.dateComponents(in: TimeZone.current, from: date)
// look at hour as needed

There are other Calendar APIs if you just want a single component or just a smaller subset of components instead of all components from the date.

Upvotes: 1

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