Comparison
World Time Buddy vs timeanddate vs World Clock Meeting Planner.
Three established ways to plan a meeting across time zones. Here is an honest breakdown of what each one is good at, including where this site is weaker.
Updated November 9, 2026 · Reviewed by The Vibing Dev.
Disclosure: we build and maintain World Clock Meeting Planner, one of the tools compared here. We have linked each competitor so you can verify features and current pricing yourself. Features change; check the vendor's site before relying on a detail.
Quick comparison
| Feature | World Clock Meeting Planner | World Time Buddy | timeanddate |
|---|---|---|---|
| Account required | No | Optional | Optional |
| Multi-city timeline | Yes, 117+ hubs plus any IANA zone | Yes | Yes |
| Golden-window view | Yes, with In / Early / Late / Outside ratings | Timeline overlap, less explicit rating | Meeting planner with overlap |
| Calendar export | .ics plus formatted summary | Yes | Yes |
| Reference depth | Focused on scheduling | Focused on scheduling | Broad time, date, and astronomy reference |
| Best for | Fast group overlap without sign-up | Polished personal planning | Research plus meeting planning |
| Where it is weaker | Smaller brand, fewer integrations | Some features tied to an account | Busy pages and advertising |
World Time Buddy
World Time Buddy is popular for its clean multi-zone timeline and quick slider interactions. It is a strong choice if you want a familiar interface and do not mind creating an account for saved settings. Its core planning view is fast and readable.
The trade-off is that the meeting-quality signal is less explicit than a dedicated golden-window rating, so a group may still debate whether a slot is fair.
timeanddate
timeanddate is the reference library of the time-zone web: world clocks, calendars, astronomy, and a meeting planner. If you need to check a sunrise, a holiday, or a historical time change, it is often the fastest place to find an authoritative answer.
For a single meeting, the breadth can be more than you need, and the pages carry advertising. The meeting planner itself is capable, but the experience is less focused than a purpose-built overlap tool.
World Clock Meeting Planner
This site is deliberately narrow: add cities, set working hours, see the golden window, rate each participant, and export a correct invite. It requires no account, runs in the browser, and uses IANA data for DST. The 61 city-pair pages add precomputed hour tables for common corridors.
The weakness is scale and integrations. It is an independent studio product, not a large platform, so it does not have the same brand recognition or calendar integrations as the established tools. If you need deep calendar sync or enterprise admin controls, one of the others may fit better.
Which should you use?
- Use World Time Buddy if you want a polished, familiar timeline and are comfortable with an optional account.
- Use timeanddate if you need reference data alongside the meeting planner.
- Use World Clock Meeting Planner if you want the fastest no-sign-up overlap view and a clear fairness rating for a group.
Comparison FAQ
Which tool is best for finding a meeting overlap?
All three can show a multi-city timeline. World Clock Meeting Planner adds an explicit golden-window view and In hours / Early / Late / Outside ratings, which makes the trade-off easier to explain to a group.
Do I need an account to use World Clock Meeting Planner?
No. The planner runs in the browser without sign-up. World Time Buddy and timeanddate may offer optional accounts for saved settings or additional features.
Are the DST conversions accurate?
This planner uses the browser's IANA time zone data and is rebuilt on deploy. timeanddate and World Time Buddy also publish DST-aware conversions. Always verify the exact date during a transition week.
Can I export a meeting invite?
Yes. World Clock Meeting Planner exports .ics files and formatted summaries with each participant's local time. Check the other tools for their current export options.