Tehran, Iran Singapore, Singapore

Tehran is in the +0330 timezone (UTC+3:30) and Singapore is in the +08 timezone (UTC+8). The time difference between them is 4h 30m.

Use the timeline above to find overlapping business hours between Tehran and Singapore. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Neither Tehran nor Singapore observes Daylight Saving Time, so the time difference remains constant throughout the year.

Click the pencil icon next to the Tehran clock and type any time. The Singapore clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.