Timer
Create an alarm timer
Features
Set up to 99 hours
Specify hours, minutes, and seconds individually to support long measurements
Built-in with 11 time presets
Set instantly from 10 seconds to 2 hours with one tap
Alarm sound duration
Choose from five levels: off, 5 seconds, 15 seconds, 1 minute, or unlimited
Supports pause and resume
Stop mid-count and resume measuring from where you left off
How to use
Enter the time to measure
Enter numbers in the hours, minutes, and seconds fields, or set them all at once with preset buttons
Choose the alarm sound length
Choose the sound duration from off to unlimited to decide how you're notified at the end
Start measuring with start
Press the button to start the countdown, with the remaining time shown large
Confirm with the end alarm
At zero the screen flashes and the alarm sounds; reset to measure again
Use cases
Manage cooking times
Time noodle boiling and simmering to prevent overcooking
Manage focus for study and work
Measure cycles of focus and breaks over fixed periods, such as the Pomodoro method
Time training
Accurately mark off intervals for strength training and stretching
Allocate time in meetings and presentations
Time the allotted time for each talk or agenda item to manage progress smoothly
Build children's daily habits
Mark off time for brushing teeth and tidying up to encourage habits through play
Safety and privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
measuring time and generating the alarm sound is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
the set time and alarm settings and input suggestions are not stored on the server.
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Updates
- update #309
Fixed display issue where remaining time is cramped to edge of frame on small screens in Timer
- update #31
Resolve timer lag in background tabs with real-time calculation
Featured Tools
RAKKOTOOLS is free to use!
Available free of charge for individuals and corporations, commercial and non-commercial use alike.No prior permission or usage application is required. Feel free to use it in various situations.
Use in streaming and videos
Use various tools such as lottery draws and raffles in live streams and videos.
Use in schools, work, and events
Can be used in various situations such as classes, team division, internal work, and events.
Introduction on Web, books, and SNS
Feel free to introduce it as a useful tool on web media, books, SNS, and other platforms.
Commercial use
Can be used for commercial purposes such as research, calculation, processing, and conversion in business and production.
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If using in streaming and videos
Link to RAKKOTOOLS in the description, or Mention or display that you are using RAKKOTOOLS in the stream or video.
Credit example for the description
Usage guidelinesYou are free to use it for normal purposes. However, use for purposes that violate laws, infringe on third-party rights, impose significant load on the service, or otherwise interfere with service operation is prohibited.
We do not guarantee the accuracy or completeness of information and calculation results obtained from each tool.
This notice is a translation of the original Japanese text. If there is any discrepancy between the translation and the original, the Japanese original takes precedence.