Time Difference: Singapore to Tehran
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Singapore vs Tehran timezone guide
Singapore (Singapore) uses the Asia/Singapore timezone at UTC+8, while Tehran (Iran) uses Asia/Tehran at UTC+3:30. This means Tehran is 4 hours 30 minutes behind Singapore (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between Singapore and Tehran
Standard 9-to-5 working hours overlap by 3.5 hours per day. The shared window is 1:30pm–5pm in Singapore, which is 9am–12:30pm in Tehran. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| Singapore | Tehran | Status |
|---|---|---|
| 6am | 1:30am | Singapore early, Tehran asleep |
| 7am | 2:30am | Singapore early, Tehran asleep |
| 8am | 3:30am | Singapore early, Tehran asleep |
| 9am | 4:30am | Singapore working hours, Tehran asleep |
| 10am | 5:30am | Singapore working hours, Tehran asleep |
| 11am | 6:30am | One side outside 9-to-5 but still awake |
| 12pm | 7:30am | One side outside 9-to-5 but still awake |
| 1pm | 8:30am | One side outside 9-to-5 but still awake |
| 2pm | 9:30am | Both at work — ideal meeting time |
| 3pm | 10:30am | Both at work — ideal meeting time |
| 4pm | 11:30am | Both at work — ideal meeting time |
| 5pm | 12:30pm | One side outside 9-to-5 but still awake |
| 6pm | 1:30pm | One side outside 9-to-5 but still awake |
| 7pm | 2:30pm | One side outside 9-to-5 but still awake |
| 8pm | 3:30pm | One side outside 9-to-5 but still awake |
| 9pm | 4:30pm | One side outside 9-to-5 but still awake |
| 10pm | 5:30pm | Singapore late evening, Tehran evening |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between Singapore and Tehran
Neither Singapore nor Tehran observes daylight saving time. The time difference between them stays at 4h 30m ahead all year — recurring meetings only need to be scheduled once.
Distance between Singapore and Tehran
Singapore and Tehran are 6,606 km apart along the great-circle route. A direct flight takes roughly ~8h 46m, depending on aircraft type, winds, and routing.