Calculators
Time Until
How long until a date and time in any time zone: a live countdown in weeks, days, hours, minutes and seconds.
How it works
Pick a date, an optional time (midnight if you leave it) and the time zone the moment belongs to. Time counts down live from your device clock, in days, hours, minutes and seconds, and as a readable summary like “1 week, 5 days, 4 hours”.
Share a countdown with Copy link — for example /time-until?at=2026-12-31T23:59&zone=Asia/Kolkata. Nothing is stored on a server: the link carries the moment and the zone, and every visitor counts down from their own clock.
Worked example
From 7:38 PM on 19 December 2026 in India, the time until 11:59 PM on 31 December 2026 (Asia/Kolkata) is 12 days, 4 hours, 21 minutes — 1 week, 5 days, 4 hours.
Edge cases handled
- Targets in the past (“That moment was … ago”).
- Targets on DST change days, including nonexistent and ambiguous times (you choose).
- Countdowns that cross a DST change (counted in real hours).
- The countdown pauses while the tab is hidden and resyncs when you return.