The link is the account: building a no-signup, real-time timezone board
Why timezoners.com has no login, how Supabase realtime keeps a shared board in sync, and the timezone math behind the overlap grid. -
Shoot for 3:00 PM to 6:00 PM in Auckland; your Delhi colleagues will see that as 8:30 AM to 11:30 AM. Since Delhi is 6.5 hours behind Auckland, the workdays overlap by around 3 hours; 3:00 PM in Auckland (8:30 AM in Delhi) makes a reliable recurring slot. Seasonal note: Auckland uses daylight saving and Delhi doesn't, so double-check the times in your own months — they can move by an hour. To edit hours, add more timezones, and share with your team, create a free collaborative board.
| UTC (GMT+0) | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Auckland Pacific/Auckland | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | Next Day 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | |
| Delhi Asia/Kolkata | 5:30am | 6:30am | 7:30am | 8:30am | 9:30am | 10:30am | 11:30am | 12:30pm | 1:30pm | 2:30pm | 3:30pm | 4:30pm | 5:30pm | 6:30pm | 7:30pm | 8:30pm | 9:30pm | 10:30pm | 11:30pm | Next Day 12:30am | 1:30am | 2:30am | 3:30am | 4:30am |
Why timezoners.com has no login, how Supabase realtime keeps a shared board in sync, and the timezone math behind the overlap grid. -
A quick guide to displaying two or three time zones in Outlook's calendar, plus practical advice for not screwing up recurring meetings across regions. -
A complete guide to time zones in 2025, from UTC and GMT differences to Daylight Saving Time changes, IANA database rules, abbreviation pitfalls, and developer best practices for handling global time. -