I made this minisite so I wouldn't have to watch users write their own cron expressions in Val Town[1] during user onboarding calls. The worst part was that after they'd figure out the cron, then they'd forget to do the timezone conversion to UTC. My site guesses your timezone based on your browser timezone, but lets you select another one if you want. In this way, my site is a slight improvement over Cron Prompt[2] which was on HN[3] a year ago, in that they don't have timezone conversion support.Let me know what you think! I'd also LOVE a PR on the code itself[4] if you have any improvement ideas
[1] - https://val.town, my startup
[2] - https://cronprompt.com/
[3] - https://news.ycombinator.com/item?id=32358591
[4] - https://www.val.town/v/stevekrouse/cron