Compare time zones and plan meetings across the world. Add any city by search, map click, or your own location, then drag the meeting time to see the local hour everywhere at once, with working hours highlighted.
Add a location to start. Add two or more to compare time zones and plan a meeting.
A time zone comparison tool shows the current local time in several places at once and lets you plan a meeting time that works across all of them. Add each participant’s city, pick a time, and see the corresponding local hour everywhere, with working hours highlighted so you can spot an overlap that suits everyone. It handles daylight saving automatically using each location’s official IANA time zone.
A timezone is the offset from Coordinated Universal Time (UTC) that a region uses for local clocks. The IANA timezone database (also called tz or zoneinfo) is the universal naming convention used by every major operating system, programming language, and cloud platform. Names follow Region/City format: Europe/Brussels, America/New_York, Asia/Tokyo. Storing the IANA name (not just the UTC offset) is the only way to handle daylight saving time and historical changes correctly.
You enter an address or place name. We forward-geocode it through the MapAtlas Geocoding API to get a precise latitude and longitude. From those coordinates we return the IANA timezone for that point on Earth. The free version on this page returns a coarse continental zone, which is enough for most informational use cases. The production API returns the precise tz database name including all sub-region exceptions and DST rules.
Booking flows that need to display local check-in times, scheduling tools that compute meeting overlap across cities, IoT pipelines that timestamp events with the correct local zone, AI assistants answering 'what time is it in...', and any travel, logistics, or hospitality product that operates across borders. Every modern stack expects IANA names. Storing only a UTC offset will break the moment a region changes its DST rules, which happens somewhere on Earth almost every year.
The MapAtlas API returns precise IANA timezones, DST status, and historical offset data for any latitude and longitude. EU-hosted, GDPR-compliant, predictable pricing.
