ZoneSync — World Clock

ZoneSync — World Clock & Meeting Planner

Working with people in other time zones? ZoneSync keeps every city you care about on one screen and does the "wait, what time is it there?" math for you — offline, with no account and no ads.

WORLD CLOCK
Add the cities you work with and see them all at a glance — current time, date, and how far ahead or behind they are. Handles half-hour and 45-minute zones (India, Nepal, parts of Australia) correctly, and adjusts automatically for daylight saving so you're never an hour off.

MEETING PLANNER
Pick your cities and ZoneSync scans the day for the hours when everyone is comfortably awake and working — so you can find a slot that doesn't mean a 6 a.m. call for someone. See each city's local time side by side across the whole day.

TIME CONVERTER
Got a time in one place and need it in another? Enter it once and see it in every city on your list, with the day rolled forward or back where it crosses midnight.

BUILT RIGHT
• Fully offline — no connection needed, time zone data is built in
• DST-aware, including zones that don't shift
• No sign-up, no ads, nothing uploaded
• Clean and quick — add a city, get an answer

Stop counting hours on your fingers.