EN | DE 
Language:



Español
Français
Português
Italiano
Deutsch
..in Japan
Country :
Calendar
School holidays :
The Holidays      ptimizer
..tells you when to take your days off to maximize the length of your vacation
Calendar
Language
 ▶
Optimize it
I would like to take
days off
from  
1 2 3 4 5 6 7 9 10 11 12
 to 
1 2 3 4 5 6 7 9 10 11 12
January 2019
week
mon
tue
wed
thu
fri
sat
sun
01
01
15
02
15
03
15
04
15
05
15
06
15
02
07
15
08
15
09
15
10
15
11
15
12
15
13
15
03
14
15
15
15
16
15
17
15
18
15
19
15
20
15
04
21
15
22
15
23
15
24
15
25
15
26
15
27
15
05
28
15
29
15
30
15
31
15
06
February 2019
week
mon
tue
wed
thu
fri
sat
sun
05
01
15
02
15
03
15
06
04
15
05
15
06
15
07
15
08
15
09
15
10
15
07
11
15
12
15
13
15
14
15
15
15
16
15
17
15
08
18
15
19
15
20
15
21
15
22
15
23
15
24
15
09
25
15
26
15
27
15
28
15
10
March 2019
week
mon
tue
wed
thu
fri
sat
sun
09
01
15
02
15
03
15
10
04
15
05
15
06
15
07
15
08
15
09
15
10
15
11
11
15
12
15
13
15
14
15
15
15
16
15
17
15
12
18
15
19
15
20
15
21
15
22
15
23
15
24
15
13
25
15
26
15
27
15
28
15
29
15
30
15
31
15
14
April 2019
week
mon
tue
wed
thu
fri
sat
sun
14
01
15
02
15
03
15
04
15
05
15
06
15
07
15
15
08
15
09
15
10
15
11
15
12
15
13
15
14
15
16
15
15
16
15
17
15
18
15
19
15
20
15
21
15
17
22
15
23
15
24
15
25
15
26
15
27
15
28
15
18
29
15
30
15
19
 
May 2019
week
mon
tue
wed
thu
fri
sat
sun
18
01
15
02
15
03
15
04
15
05
15
19
06
15
07
15
08
15
09
15
10
15
11
15
12
15
20
13
15
14
15
15
15
16
15
17
15
18
15
19
15
21
20
15
21
15
22
15
23
15
24
15
25
15
26
15
22
27
15
28
15
29
15
30
15
31
15
23
June 2019
week
mon
tue
wed
thu
fri
sat
sun
22
01
15
02
15
23
03
15
04
15
05
15
06
15
07
15
08
15
09
15
24
10
15
11
15
12
15
13
15
14
15
15
15
16
15
25
17
15
18
15
19
15
20
15
21
15
22
15
23
15
26
24
15
25
15
26
15
27
15
28
15
29
15
30
15
27
July 2019
week
mon
tue
wed
thu
fri
sat
sun
27
01
15
02
15
03
15
04
15
05
15
06
15
07
15
28
08
15
09
15
10
15
11
15
12
15
13
15
14
15
29
15
15
16
15
17
15
18
15
19
15
20
15
21
15
30
22
15
23
15
24
15
25
15
26
15
27
15
28
15
31
29
15
30
15
31
15
32
August 2019
week
mon
tue
wed
thu
fri
sat
sun
31
01
15
02
15
03
15
04
15
32
05
15
06
15
07
15
08
15
09
15
10
15
11
15
33
12
15
13
15
14
15
15
15
16
15
17
15
18
15
34
19
15
20
15
21
15
22
15
23
15
24
15
25
15
35
26
15
27
15
28
15
29
15
30
15
31
15
36
 
September 2019
week
mon
tue
wed
thu
fri
sat
sun
35
01
15
36
02
15
03
15
04
15
05
15
06
15
07
15
08
15
37
09
15
10
15
11
15
12
15
13
15
14
15
15
15
38
16
15
17
15
18
15
19
15
20
15
21
15
22
15
39
23
15
24
15
25
15
26
15
27
15
28
15
29
15
40
30
15
October 2019
week
mon
tue
wed
thu
fri
sat
sun
40
01
15
02
15
03
15
04
15
05
15
06
15
41
07
15
08
15
09
15
10
15
11
15
12
15
13
15
42
14
15
15
15
16
15
17
15
18
15
19
15
20
15
43
21
15
22
15
23
15
24
15
25
15
26
15
27
15
44
28
15
29
15
30
15
31
15
45
November 2019
week
mon
tue
wed
thu
fri
sat
sun
44
01
15
02
15
03
15
45
04
15
05
15
06
15
07
15
08
15
09
15
10
15
46
11
15
12
15
13
15
14
15
15
15
16
15
17
15
47
18
15
19
15
20
15
21
15
22
15
23
15
24
15
48
25
15
26
15
27
15
28
15
29
15
30
15
49
December 2019
week
mon
tue
wed
thu
fri
sat
sun
48
01
15
49
02
15
03
15
04
15
05
15
06
15
07
15
08
15
50
09
15
10
15
11
15
12
15
13
15
14
15
15
15
51
16
15
17
15
18
15
19
15
20
15
21
15
22
15
52
23
15
24
15
25
15
26
15
27
15
28
15
29
15
01
30
15
31
15
 
Public holidays
Weekend days
Days to take
Holidays
Days to take:
45
Holidays length:
12
Optimization factor:
?
Copy
Share your result!
A suggestion?
A question or an error to report?

Do not hesitate to reach us at:
contact@workingdays.org