The best time to call Tehran from Cologne is 9 AM–3.5 PM your time (Cologne). Tehran, Iran is 1 hour ahead of Cologne, Germany. You have 6.5 hours of business hours overlap for scheduling calls.
Call between 9 AM–3.5 PM Cologne time. This is 10.5 AM–5 PM in Tehran.
Cologne and Tehran share 6.5 hours of overlapping business hours (9 AM – 5 PM local time).
The best time to call Tehran from Cologne is 9 AM–3.5 PM Cologne time. This gives you 6.5 hours of business hours overlap.
Tehran is 1 hour ahead of Cologne.
Avoid calling after 8.5 PM your time (it's late night there).
Yes, Cologne and Tehran 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
Cologne: 9 AM–3.5 PM GMT+2
Tehran: 10.5 AM–5 PM GMT+3:30
| Cologne (GMT+2) | Tehran (GMT+3:30) | Status |
|---|---|---|
| 7 AM | 8 AM | 🟡 They're awake |
| 8 AM | 9 AM | 🟡 They're awake |
| 9 AM | 10 AM | ✅ Both in office |
| 10 AM | 11 AM | ✅ Both in office |
| 11 AM | 12 PM | ✅ Both in office |
| 12 PM | 1 PM | ✅ Both in office |
| 1 PM | 2 PM | ✅ Both in office |
| 2 PM | 3 PM | ✅ Both in office |
| 3 PM | 4 PM | ✅ Both in office |
| 4 PM | 5 PM | 🟡 They're awake |
| 5 PM | 6 PM | 🟡 They're awake |
| 6 PM | 7 PM | 🟡 They're awake |
| 7 PM | 8 PM | 🟡 They're awake |
| 8 PM | 9 PM | 🟡 They're awake |
| 9 PM | 10 PM | 🔴 They're sleeping |