How to Use

A quick rundown of how each CoTimer feature works. Most of them you can use right away, no login required.

Time

Shows the exact current time, synced with the server so it stays accurate even if your device's own clock is a bit off.
See the current time in major cities around the world, grouped by continent. Tap a card's pencil icon to swap it for a different city.
Compare times across multiple cities side by side. The "Set time" tab lets you preview what time it'll be in each city at a given date and time — handy for scheduling meetings.
Find the number of days between two dates, or the date 100 or 200 days from a given day.

Timer

Set an alarm for any date and time. You can keep up to 2 without logging in, or up to 4 once you sign in.
Set a time and count down from it — handy for cooking, studying, workouts, and more.
Start timing with one click, with lap-time tracking built in.
Count down to a wedding, an exam, or any big day — set your own target date and time.

Shared Timer

Create a room where several people can watch the time together in real time. Send the invite link and anyone can join, no login required.
Create a shared timer room. When the host starts, pauses, or resets it, everyone watching sees it update instantly too.
Create a shared countdown room everyone can watch together — count down to the big moment as a group.

Display settings