When the world meets at work.
Read the day in both zones.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Hanoi uses the VND (₫) and Köln uses the EUR (€). Language shifts too — Vietnamese in Hanoi, German in Köln. Cars drive on the right in both, so rentals feel familiar.
- Country
- Vietnam
- Capital
- Hanoi
- Currency
- Vietnamese đồng (VND · ₫)
- Language
- Vietnamese
- Calling code
- +84
- Drives on
- Right
- Country
- Germany
- Capital
- Berlin
- Currency
- euro (EUR · €)
- Language
- German
- Calling code
- +49
- Drives on
- Right
Quick answers. Before you book the call.
What's the time difference between Hanoi and Köln?
Hanoi is 5 hours behind Köln. Hanoi runs on GMT+7 and Köln on GMT+2. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.
When's the best time to schedule a meeting?
There are 3 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.
Does daylight saving time change the difference?
Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.
How far is Hanoi from Köln?
About 8,805 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 10h 52m, not counting airport time, winds, or routing around restricted airspace.
Can I send this meeting time as a calendar invite?
Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.
What currency do Hanoi and Köln use?
Hanoi uses the Vietnamese đồng (VND, ₫); Köln uses the euro (EUR, €). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.
How do I call Hanoi from Köln?
Dial the international prefix used by your carrier (often 00), then +84, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.
What language is spoken in Hanoi and Köln?
Hanoi primarily speaks Vietnamese; Köln speaks German. English is widely used in business contexts in major cities of both, but written contracts may need translation.
Do Hanoi and Köln drive on the same side of the road?
Yes — both drive on the right. Rental cars feel identical between the two.