In January 2026, Japan has 20 business days once weekends and 2 public holidays are excluded. Counting only weekends (ignoring public holidays) instead gives 22 weekdays.
Key facts
Business days (weekends + holidays excluded)
20
Weekdays only (weekends excluded, holidays counted as working days)
22
Public holidays this month
2
Public holidays this month
Date
Holiday
2026-01-01
New Year's Day
2026-01-12
Coming of Age Day
Calendar
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1New Year's Day
2
3
4
5
6
7
8
9
10
11
12Coming of Age Day
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Frequently asked questions
How many business days are in January 2026?
January 2026 has 20 business days in Japan, once weekends and public holidays are excluded.