Congrats on the launch - super useful! I love the utilitarian approach - I do think the site could benefit from jazzing up the colors a bit, but that might just be personal preference. One thing I did run into is that my instinct was to clicks on the locations at the bottom of the screen to edit them and it took me a bit to realize that I needed to scroll down to access the area where I could edit, so maybe just indicate that somehow or make the locations clickable to edit. Nice done - gonna use this going forward!
TimeInZone