How about spacetime.am? A website or tool for time differences and to manage stuff and be able to check stuff. Previously, I tried to make it easier to manage our time zones thingy but then I thought maybe it isn't good. So I looked up and found it. Here's the screenshot link and you can search it up yourself and maybe someone, probably the creator of this maybe. Bye bye for now. Source: about 3 years ago

I use: tomato-timer.com, and I use the basic 25/5 or 25/10 for a longer rest. I set the bell tone I want and tell it to go continuously (that's "auto start" under settings). I get myself ready, close out wasting time tabs, open my document, make sure I have my water by my side, and press "start." Then I do my 5 or 6 sprints and usually am done for the day. Source: about 1 year ago

There is a "Tomato Timer". [1] Looks like it was bought recently. [1] https://tomato-timer.com/. - Source: Hacker News / over 1 year ago

Adderall and https://tomato-timer.com/ . Source: over 2 years ago

Here this might help you https://tomato-timer.com/. Source: over 2 years ago

Here’s a website with a timer too in case you don’t wanna use an app. Source: over 2 years ago