Observed arrival · 2026-11-05
Jikan Check: a Japanese overtime calculator
A free calculator for workers under Japan’s one-month variable-hours system, comparing planned shifts with actual hours to estimate statutory overtime.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Workers on Japan’s one-month variable-hours system
- Worth noticing
- The page says entries stay on the device, are not sent elsewhere, and are cleared after 30 days on a later visit.
Field notes
The workflow separates scheduled hours from actual hours, so users only need to revise days when they worked a different amount. It applies daily and weekly limits before checking the period total; the page gives 177 hours and 8 minutes as the limit for a 31-day period at 40 hours per week. It also distinguishes statutory overtime from hours that may be payable under an employment contract but do not meet the statutory overtime threshold.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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