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. -
Ho Chi Minh City and Lisbon overlap from 2:00 PM to 6:00 PM (Ho Chi Minh City) to the equivalent 8:00 AM to 12:00 PM in Lisbon — that's your meeting window. Roughly 4 hours of shared hours means scheduling takes a little care — 2:00 PM in Ho Chi Minh City / 8:00 AM in Lisbon is a safe default. Bear in mind Lisbon shifts for daylight saving while Ho Chi Minh City stays fixed — recheck these hours after each clock change. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ho Chi Minh City Asia/Ho Chi Minh | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm | Next Day 12am | 1am | 2am | 3am | 4am | 5am | 6am | |
| 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 |
Why timezoners.com has no login, how Supabase realtime keeps a shared board in sync, and the timezone math behind the overlap grid. -
Working from anywhere is great until you realize your 10 AM sync is now at 2 AM. Here's how to manage your schedule, set boundaries, and keep your team in the loop while traveling the world. -
Is your distributed team burning out? The culprit might not be the workload-it might be the clock. Here's how to spot Time Zone Fatigue and fix it. -