What is the time difference between Singapore and Tehran?

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).

When scheduling a call or meeting between Singapore and Tehran, look for the overlapping work hours highlighted above. The live clocks on this page update every second, and the difference adjusts automatically when either city enters or exits daylight saving time.

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