World Clock
Shows the current time in major cities at a glance, marking which are on a different date and which are inside working hours.
⏱️ Runs while this tab is open. No install, no sign-up.
🇰🇷Seoul— · Working hours--:--:--
🇺🇸New York— · Working hours--:--:--
🇬🇧London— · Working hours--:--:--
🇯🇵Tokyo— · Working hours--:--:--
🇺🇸Los Angeles— · Working hours--:--:--
Add or remove cities
The card colour tells you what time of day it is there — green is working hours, black is the middle of the night. A glance at the colour tells you whether now is a reasonable moment to message. Daylight saving is applied automatically, since the browser knows each country’s rules.
What this tool does
- Current time in major cities
- Different-date cities marked
- Working hours and night marked
- Add and remove cities
Other time tools
Timer and alarm sounds may not fire if the device goes to sleep.