8 hour timer

A free 8 hour timer set to 8:00:00 and ready to start. It keeps the remaining time in the tab title and saves the end time, so a reload picks up where you left off. Also searched as 8 hr timer, eight hour timer, 480 minute timer.

An eight-hour shift with breaks

Elapsed	Event
0:00	Start; put the timer in a second monitor or tab
2:00	Ten-minute break
4:00	Thirty-minute lunch
6:00	Ten-minute break
8:00	Alarm; shift ends

Run this page for the whole shift and a 2 hour timer with Repeat alongside it to call the breaks. Break rules vary by state and employer, so match the table to your own schedule.

Overnight uses

Slow cooker on Low: pot roast and pulled pork come out at eight hours; see the 6 hour timer for earlier check-ins.
Overnight oats: four hours is enough, eight is standard, and they keep for days in the fridge.
Dried beans: soak eight to twelve hours before cooking.
Sleep: eight hours sits inside the seven to nine hours recommended for adults.

Sleeping with a browser timer

A phone browser cannot ring once the screen locks, so for actual sleep use the phone's alarm and keep this page for cooking and shifts. On a desktop you can make it work: set the display to never sleep, keep the volume up, and tick Notify. The sleep timer page covers wind-down routines and white-noise cutoffs. This is general information, not medical advice.

Keeping it running

Eight hours is long enough for almost any device to sleep by default. Keep the tab open, disable display sleep and tick Notify. For an end at a specific clock time, see the alarm clock; for any other length, the countdown timer; for a longer window, the 12 hour timer.

Frequently asked questions

Can an 8 hour browser timer wake me up?

Only on a device that stays awake with sound on, such as a desktop with display sleep turned off. A locked phone mutes browser audio, so use its built-in alarm for sleep.

Does the timer keep going if the computer sleeps?

The end time is saved, so the page shows the correct remaining time when the computer wakes, but the alarm will not sound while it is asleep.

Can I track breaks inside the 8 hours?

Run this page for the shift and a second tab with a 2 hour timer on Repeat for the break rhythm shown in the table.