Make sense of a log.
Read a UTC event in your local time. Compare New York, London, Shanghai and more without doing the offsets in your head.
A little clarity, across time zones
Same moment.
A world of
different times.
Turn a UTC timestamp into a time you can use. A focused Mac utility for logs, releases, and people on the other side of the world.
macOS 15.5+ · Native SwiftUI app · Current App Store version: 1.0
Runs in your browser. Your timestamp is not sent to a server. Zone-less dates are treated as UTC.
01 Paste a timestamp02 See the date in each time zone03 Get back to what matters
Small tool. Everyday moments.
Less time counting hours.
More time doing your thing.
Keep the date in view.
Midnight changes the day, too. See a full date alongside each time so a late-night handoff does not become a next-day surprise.
A quiet, local utility.
The app converts timestamps on your Mac. No account, tracking SDK or network connection is needed for conversion.
An input for every workflow
Bring your timestamp.
Try an ISO 8601 date, an explicit offset, or Unix seconds. The demo also lets you choose milliseconds.
Understand UTC, Unix time and daylight saving →A few useful answers
Time zones have quirks.
Your tools can help.
Does the app handle daylight saving time?
Regional time zones use macOS time-zone data. The next update also corrects the local offset label when the entered date falls in a different daylight-saving season.
Can I convert from the menu bar?
A menu-bar converter and refreshed interface are in development for the next update. They are not included in the current App Store version 1.0.
What formats can I enter?
The app accepts ISO-style UTC dates, UTC dates with spaces, explicit offsets and Unix seconds. The next update adds an explicit milliseconds selector and stricter validation.
Is this web demo the same as the Mac app?
This demo previews conversion in your browser. The Mac app is a separate native download; the new menu-bar interface is still in development.
How do I report a problem?
Use the feedback page to prepare a reproducible report. You can submit it publicly on GitHub or contact the developer privately by email.
One less thing to calculate