So I built Time Keep, it puts world clocks, timers, alarms, countdowns, a stopwatch, breaks, a sleep planner, Discord timestamps, and more into one always open place.
Works without an account or signup. All tools are fully functional immediately. Sign in to save your data across sessions. Pro adds live cross-device sync.
Shared countdown links show the correct time in every viewer's timezone. Built with Next.js, Supabase, Clerk, and Vercel.
The same principle I try to bring up when building something for consumers whose primary objective is something else, and the solution/app is competing with something easy to find, “Can this compete or be faster with pen/paper, or just writing a note to self on WhatsApp?”
The Native Time Apps on macOS are pretty good these days, so I have done away with all sorts of Timezome, Alarm, Timer-related Apps except The Clock.[1]
I think The Clock is just one developer, and I have had the app for as long as I can remember (easily 10+ years). I can do without it and use the native clock to replace most functions, but I like that time slider, which I can use to check the time differences between zones. Settings sync across devices via iCloud. It is just there whenever I need it. It is one of those that you buy once and keep abusing for ages.
1. https://seense.com