Iran ↔ China — time offset
Iran is 5 hours 30 minutes behind China. When Iran clocks hit noon, China reads 16:00.
Iran observes Asia/Tehran and China observes Asia/Shanghai — a 4.5 hours 30 minutes gap between them.
Mutual working hours
Every working day, Iran and China are both in business hours for 3.5 hours simultaneously.
00:0006:0012:0018:0024:00
Optimal meeting slots
Iran and China share 3.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
09:00 Tehran / 13:00 Beijing✓ Both working
10:00 Tehran / 14:00 Beijing✓ Both working
11:00 Tehran / 15:00 Beijing✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
Iran
No upcoming public holidays this year.
China3 holidays
Jun 19Dragon Boat FestivalSOON
Sep 25Mid-Autumn Festival
Oct 1National Day
Working across Iran and China
Coordinating between Iran (Iran) and China (China) means working around a 4.5-hour time difference. The 3.5-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 Best practice for cross-timezone meetings
✅Schedule at 09:00–10:00 (Iran) for a 13:00–14:00 slot in China — the sweet spot where both teams are working.
✅Schedule at 10:00–11:00 (Iran) for a 14:00–15:00 slot in China — the sweet spot where both teams are working.
✅Schedule at 11:00–12:00 (Iran) for a 15:00–16:00 slot in China — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Install ClockinSync Free →Drag the slider at the top to convert any Iran time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
