Time difference: China and Iran
China is 4 hours 30 minutes ahead of Iran. Midday in China lines up with 07:00 in Iran.
China observes Asia/Shanghai and Iran observes Asia/Tehran — a 4.5 hours 30 minutes gap between them.
Business hours comparison
There is a 3.5-hour window each day where both China and Iran are within standard business hours (09:00–17:00).
00:0006:0012:0018:0024:00
Optimal meeting slots
China and Iran share 3.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
14:00 Beijing / 09:00 Tehran✓ Both working
15:00 Beijing / 10:00 Tehran✓ Both working
16:00 Beijing / 11:00 Tehran✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
China2 holidays
Sep 25Mid-Autumn Festival
Oct 1National Day
Iran
No upcoming public holidays this year.
How to work with China and Iran time zones
Coordinating between China (China) and Iran (Iran) 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.
💡 How to schedule across these time zones
✅Schedule at 14:00–15:00 (China) for a 09:00–10:00 slot in Iran — the sweet spot where both teams are working.
✅Schedule at 15:00–16:00 (China) for a 10:00–11:00 slot in Iran — the sweet spot where both teams are working.
✅Schedule at 16:00–17:00 (China) for a 11:00–12:00 slot in Iran — 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 China time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
