Time
Convert time zones, plan meetings, calculate dates, and work with timestamps — precisely.
UTC
––:––
Chennai
––:––
London
––:––
New York
––:––
Tokyo
––:––
Sydney
––:––
Current time based on your device clock.
Time Zone Converter
One time, many places — DST-correct for the chosen date, with clear warnings when a local time doesn't exist or happens twice.
Chennai · Wed 7 Oct 2026 · 8:00 PM IST
Meeting Planner
Per-person working hours, a readable timeline, the best overlap — or the kindest compromise when there isn't one. Copy a clean summary for Slack or Teams.
Chennai + London, 9–5 each
Overlap 1:30 PM–5:00 PM Chennai · 9:00 AM–12:30 PM London
Date & duration
Month ends, leap years, custom weekends and business days — each result says what it means.
Developer time tools
Unix seconds to nanoseconds with exact integer maths, ISO 8601 parsing that explains itself, and ISO week dates.
DST intelligence
Some local times don't exist; some happen twice. Time detects both, explains them in plain language and asks you to choose — it never guesses.
Read the DST guideNew York · 8 Mar 2026 · 2:30 AM
This local time does not exist because the clock moves forward.
New York · 1 Nov 2026 · 1:30 AM
This local time occurs twice because the clock moves backward.
Trust
Every calculation runs in your browser with documented rules and a deep automated test suite across eight time zones and multiple DST seasons.
IANA time zones
Offsets come from the time-zone database for each moment — never hard-coded.
DST-aware calculations
Nonexistent and repeated local times are detected and explained.
No account required
Open a tool and use it. There's nothing to sign up for.
No meeting data stored
Plans live in your browser. Share links carry only places, dates and times you chose.
Feedback & queries
Time zones are full of surprises. If a result looks wrong — or you have an idea — please get in touch.