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Week starts:
Japan
September 2025 Sun
Mon
Tue
Wed
Thu
Fri
Sat
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Respect for the Aged Day
16
17
18
19
20
21
22
23
Autumnal Equinox Day
24
25
26
27
28
29
30
1
2
3
4
15 Respect for the Aged Day
23 Autumnal Equinox Day
Japan
September 2025 Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Respect for the Aged Day
16
17
18
19
20
21
22
23
Autumnal Equinox Day
24
25
26
27
28
29
30
1
2
3
4
5
15 Respect for the Aged Day
23 Autumnal Equinox Day
September 2025 Holidays
| Date | Holiday |
|---|---|
| Monday, September 15 | Respect for the Aged Day (敬老の日) |
| Tuesday, September 23 | Autumnal Equinox Day (秋分の日) |
Download Japan September 2025 Holiday Calendar
September 2025 — Landscape
Printable Japan holiday calendar for September. Landscape format, week starts Sunday.
September 2025 — Portrait
Compact portrait layout with holidays listed. Week starts Sunday.
Dual-Country Calendars
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Japan 2025 — All Months
Holiday dates sourced from Nager.Date, verified against Cabinet Office of Japan. Last verified: 2026-03-20.