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. -
Both offices are open during 8:30 AM to 1:30 PM Lisbon time, which is 1:00 PM to 6:00 PM in Bengaluru. Bengaluru is 4.5 hours ahead of Lisbon. That leaves about 5 hours of common time — enough for a meeting or two, so use it deliberately. Because only Lisbon changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Lisbon enters or leaves daylight saving. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lisbon Europe/Lisbon | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | Next Day 12am |
Bengaluru 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. -
The Philippines sits 12 to 16 hours ahead of the US and never changes its clocks. Exact overlap windows for every US coast, the tomorrow problem, and a rotation rule that works for product and BPO teams. -
24/7 support sounds great until a P1 ticket falls into the gap between Manila signing off and Dublin signing on. Here is how to design a follow-the-sun support model that actually catches tickets at the boundary. -