The best time to call Cologne from Tehran is 10.5 AM–5 PM your time (Tehran). Cologne, Germany is 1 hour behind Tehran, Iran. You have 6.5 hours of business hours overlap for scheduling calls.
Call between 10.5 AM–5 PM Tehran time. This is 9 AM–3.5 PM in Cologne.
Tehran and Cologne share 6.5 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Cologne from Tehran is 10.5 AM–5 PM Tehran time. This gives you 6.5 hours of business hours overlap.
Cologne is 1 hour behind Tehran.
Avoid calling before 8.5 AM your time (they haven't started their day).
Yes, Tehran and Cologne have approximately 6.5 hours of overlapping business hours per day.
You have 6.5 hours of business hours overlap — scheduling calls is easy.
Both in business hours Both awake One outside comfort zone Sleeping hours
Tehran: 10.5 AM–5 PM GMT+3:30
Cologne: 9 AM–3.5 PM GMT+2
| Tehran (GMT+3:30) | Cologne (GMT+2) | Status |
|---|---|---|
| 7 AM | 6 AM | 🔴 They're sleeping |
| 8 AM | 7 AM | 🟡 They're awake |
| 9 AM | 8 AM | 🟡 They're awake |
| 10 AM | 9 AM | ✅ Both in office |
| 11 AM | 10 AM | ✅ Both in office |
| 12 PM | 11 AM | ✅ Both in office |
| 1 PM | 12 PM | ✅ Both in office |
| 2 PM | 1 PM | ✅ Both in office |
| 3 PM | 2 PM | ✅ Both in office |
| 4 PM | 3 PM | ✅ Both in office |
| 5 PM | 4 PM | 🟡 They're awake |
| 6 PM | 5 PM | 🟡 They're awake |
| 7 PM | 6 PM | 🟡 They're awake |
| 8 PM | 7 PM | 🟡 They're awake |
| 9 PM | 8 PM | 🟡 They're awake |