So finden Sie die beste Zeit heraus, um jemanden auf der Welt anzurufen
Der vollständige Artikeltext ist unten auf Englisch verfügbar.
Let's be honest: figuring out the best time to call someone in another country is annoying. You have to account for time zones, daylight saving (which not every country observes, and those that do switch on different dates), business hours, lunch breaks, weekends, and holidays. It's a lot.
This guide gives you a framework — not just a table of offsets, but a way to think about international calling that actually works in practice.
The Overlap Window Concept
The key idea is "overlap window" — the period when both you and the person you're calling are likely to be awake and available. For most business calls, you want both parties to be within their working hours.
Here's a rough guide for major region pairs:
| From → To | Overlap Window (approx.) | Difficulty |
|---|---|---|
| US East → Europe | 9 AM–12 PM EST = 3–6 PM CET | Easy |
| US West → Europe | 8–10 AM PST = 5–7 PM CET | Moderate |
| US East → India | 8–10 PM EST = 6:30–8:30 AM IST | Moderate (evening for you) |
| US East → Japan | 7–9 PM EST = 9–11 AM JST | Moderate (evening for you) |
| Europe → Australia | 8–9 AM CET = 5–6 PM AEST | Tight |
| US West → Australia | 5–7 PM PST = 11 AM–1 PM AEST (next day) | Tight (evening for you) |
| US East → Australia | 5–7 PM EST = 7–9 AM AEST (next day) | Tight (evening for you) |
The hardest calls are between the Americas and Asia-Pacific. There's very little natural overlap, so someone has to be flexible — usually that means the American caller dialing in the evening.
The DST Problem
Daylight saving time makes everything harder because not every country observes it, and those that do switch on different dates. Here are the key transition dates for 2026:
- US & Canada: Spring forward March 8, Fall back November 1
- Europe & UK: Spring forward March 29, Fall back October 25
- Australia: Fall back April 5, Spring forward October 4
During the 3-week gap in spring (March 8–29) when the US has switched but Europe hasn't, the US-Europe time difference is one hour less than usual. In autumn (October 25 – November 1), Europe switches back but the US hasn't — creating a 1-week gap going the other direction.
If you have a recurring international call, mark these transition dates on your calendar. A meeting that was at a convenient time can suddenly shift by an hour.
Weekends and Holidays
Don't assume the other person's weekend matches yours. The UAE used to have Friday-Saturday weekends (now Saturday-Sunday). Israel's weekend is Friday-Saturday. Some countries have Thursday-Friday weekends.
Public holidays vary wildly. China's New Year can shut down the country for two weeks. Diwali in India, Golden Week in Japan, Carnival in Brazil — these aren't just single days. Build buffer into your schedule around major holidays.
Practical Tips
- Use IANA timezone names in calendar invites (e.g., "America/New_York", "Asia/Kolkata"). These automatically adjust for DST.
- Ask the other person what time works for them. Don't just calculate and assume. "Does 3 PM your time work?" is better than "I scheduled it for 3 PM your time."
- Double-check during DST transitions. The week after a DST change, verify the time difference before important calls.
- Use a world clock tool to visualize the overlap. Our main page lets you compare multiple cities at once.
- Be flexible on the hard routes. If you're calling from the US to Australia, someone's going to be on an odd hour. Take turns if it's a recurring call.
Country-Specific Guides
We've written detailed guides for calling specific countries, with exact time windows and local business culture notes: