Haste Clock
Alternative date and time formats at a glance
Apple Watch App
Watch Face Complication
Also available on iPhone
Modified Julian Date
Continuous day count since November 17, 1858. A variant of Julian Date optimized for the computer age.
ISO Week Numbers
Week numbering standardized in ISO 8601, widely adopted by businesses and governments worldwide.
Day of Year
Sequential day count with timezone letters following NATO convention.
MCNWK
Modified Continuous Navigational Week – GPS week number without rollover, starting from Monday instead of Sunday.
Stopwatch (Apple Watch)
A complementary stopwatch feature for quick timing needs on your Apple Watch.
Always Ready
Instant access through complications on your watch face.
Built for Those Who Need More Than Just the Date
Haste Clock provides specialized date and time formats for technical and scientific use. All calculations are performed locally on your device – no internet connection required.
Get Haste Clock Today
Available for iPhone and Apple Watch
Download on the App Store