utilitech

World Time & Time Zone Converter

See the time in cities around the world, convert a time between time zones and find a meeting hour that suits everyone.

How to use it
  • The clocks run live. Add a city by typing its name in English or Thai, a country, or any time zone such as Asia/Bangkok. Your list is saved in this browser.
  • The first city is home: every other card shows how far ahead or behind it is, and whether it's already tomorrow or still yesterday there. Tap ★ on a card to make that city home.
  • To convert a time, drag the slider or type a date and time for the home city. Every card shows the same moment in its own time. Back to now returns to the live clock.
Meeting planner
  • Each row is one city across the home city's day. Green hours are working hours (9:00–18:00), amber is early morning or evening, grey is night — look for a column that's green for everyone.
  • Tap any hour to see that moment in every city. Copy puts all the times on the clipboard for an invite.
Good to know
  • Daylight saving time is handled automatically from your browser's time-zone data, so London, New York or Sydney move by an hour on the right dates. Thailand has no daylight saving: it's UTC+7 all year.
  • Everything runs in your browser; nothing you enter is sent anywhere.