Contact

Everything about this site — a wrong answer, a missing city, a broken layout, an idea for a tool — goes to one address:

[email protected]

Who reads it

Time Hub Express is built and run by an individual developer based in Singapore. One person, not a support desk. Replies usually take a few days; some take longer, and the ones needing a code change are often answered when the change ships rather than before. There is no guaranteed response time, and printing one would be dishonest.

Reporting something that looks wrong

This is the most useful message you can send, and five details turn a report into something that can be reproduced:

• Which tool. The page address is enough — /timezone-converter, /date-difference, and so on.
• What you entered. The exact dates, times and time zones, written out. “Next Tuesday morning” cannot be reproduced; 2026-03-29 03:30 inEurope/Chisinau can.
• What the site showed you — the figure itself, copied rather than described.
• What you expected instead, and why.
• Your browser and operating system, with their versions.

That last one matters more here than on most sites. This site ships no copy of the time zone rules: the rules that decide when a clock changes come from your device, through the browser’s built-in internationalisation APIs, and different devices carry different versions of them. Two people can enter the same thing and honestly see different answers, because one device’s copy of the rules is older than the other’s — the example above is a real case of it, since Moldova’s 2026 spring-forward moved between database releases. Without the browser and the operating system, a report about a daylight saving boundary often cannot be reproduced at all — there is more on that on /time-zone-changes.

What is worth writing about

• An answer you think is wrong. How the answers here are checked — and the times those checks found us wrong — is set out on /accuracy, and corrections are published on /changelog rather than fixed quietly.
• A city or time zone that is missing, or named in a way you disagree with. The names are not ours to choose: they come from CLDR and the IANA Time Zone Database, and we do not hand-edit them — the policy is on /about. Write anyway, because a name that looks wrong is often a row that is genuinely absent, and that we can fix.
• Anything that gets in the way of using the site — a control you cannot reach with a keyboard, a readout your screen reader announces badly or not at all, text that is hard to read at your settings. These are wanted, and they go to the front of the queue.
• A tool that ought to exist. Say what you would use it for — that is the part that decides it.

Advertising and business enquiries

Same address. When advertising is enabled here the ads will be served through Google, so a question about one particular ad is usually theirs to answer rather than ours — write in any case if something looks wrong.

What this address is not for

It is not a support line for anything other than this site. Your device’s clock, your calendar app and somebody else’s booking page are all outside what we can help with, however time-shaped the problem looks.

And nothing here is advice: this site gives no legal, financial, medical or safety advice, and no answer it produces should be relied on where the answer matters. For a flight, a court filing, a contract deadline or a medication schedule, check the official source that governs it.

What happens to what you send

An email is an email: it arrives in an ordinary mailbox and is kept while it is being dealt with. Please do not send anything sensitive — nothing on this site needs it, and a bug report never does. Using the tools themselves is a different matter, and unchanged by writing to us:Your timers and saved settings stay in your browser.

There is deliberately no contact form here: the site is static files with nothing running behind them, so a form would have nowhere to submit to — and one that silently does nothing is worse than none.