How Long Until Mountain Day (山の日)?
277 days until Mountain Day (山の日).
The next occurrence is Wednesday, August 11, 2027.
Wednesday, August 11, 2027
The live timer updates in your device’s local time. The calendar date itself remains August 11.
Time until Mountain Day (山の日)
How long ago was Mountain Day (山の日)?
The previous occurrence was 88 days ago, on Tuesday, August 11, 2026.
Calendar placement
This countdown uses August 11 as the recurring calendar date for Mountain Day (山の日). The next and previous occurrences are calculated from that fixed annual date.
The date record is source-backed; this page focuses on the countdown and calendar calculation rather than repeating observance-history copy.
August 11, 2027
- Weekday
- Wednesday
- Day of year
- 223
- ISO week
- 32
- Exact date page
- August 11, 2027
When are the next occurrences?
This verified countdown record uses August 11 on the Gregorian calendar. The weekday can shift each year even though the month and day stay fixed. A leap year can change the number of days between consecutive occurrences.
- WednesdayNext date
- Friday366 days after the preceding date
- Saturday365 days after the preceding date
- Sunday365 days after the preceding date
How to read the days-until answer
The headline measures the gap between today’s calendar date and the next Mountain Day (山の日) date; it does not count today as an extra day. The live clock separately measures time remaining until the start of that date on your device. Time zones and daylight-saving changes can make the live hours different from calendar days multiplied by 24.
Other events on August 11
Sources for the date context
- House of Representatives, Japan — Act No. 43 of 2014shugiin.go.jp
- House of Councillors, Japan — bill history for Act on National Holidays amendmentsangiin.go.jp
- Cabinet Office, Japan — National Holidayswww8.cao.go.jp
- Government Public Relations Online — national holidays and Mountain Day historygov-online.go.jp
Common questions
How many days until Mountain Day (山の日)?
277 days, based on the next occurrence on August 11, 2027.
What day of the week is it?
The next occurrence falls on Wednesday.
How many weeks until it?
39 full weeks and 4 days remain.