Define a period
AI Assistant
Assistant: Hello! I handle your requests in natural language, such as:

“Analyze the period from November 1, 2025, to April 25, 2028.”
or
“Add 100 business days to February 25, 2026.”
or
“Next Thursday at 2:12 PM + 124 working hours”
or
“I won't be working first week of next may (going to Greece)”
Assistant: I understand all languages.
Send
Make
every
day
count
..in Japan
| Banks

Working days

JA | DE ▼
Employee  ▼
España
Argentina
Chile
Schweiz
Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Netherlands
Belgique
Monaco
Greece
Luxembourg
Canada
Working days world map
USA
India
China
Australia
South Africa
New Zealand
Russia
Ukraine
South Korea
Brasil
France
United Kingdom & Ireland
México
Colombia
Venezuela
Deutschland
Poland
Österreich
Italia
...
xxxx
From to
days:
working days:
weekend days:
custom dates:
public holidays:
Define a period
×
From:
to:
Morning
Afternoon
Reminder
Reminder
▼
make it periodic
Make it periodic
Description
work hours
Work hours
/day
▼
Teleworking
wages
Wages
$
▼
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Account
Contact
The Holidays        ptimizer
It tells you when to take your days off to maximize the length of your vacation
I would like to take
days off
from  
 to 
days
Before running the optimizer, clicking on the days of the calendar you can define:
the days you must necessarily be at work ()
the days you want to be on holidays for sure ()
January 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
0
0
元日
+
×
02
15
1
0
銀行休業日（1月2日）
+
×
03
15
2
0
銀行休業日（1月3日）
+
×
04
15
3
0
+
×
02
05
15
4
0
+
×
06
15
5
0
+
×
07
15
6
0
+
×
08
15
7
0
+
×
09
15
8
0
+
×
10
15
9
0
+
×
11
15
10
0
+
×
03
12
15
11
0
成人の日
+
×
13
15
12
0
+
×
14
15
13
0
+
×
15
15
14
0
+
×
16
15
15
0
+
×
17
15
16
0
+
×
18
15
17
0
+
×
04
19
15
18
0
+
×
20
15
19
0
+
×
21
15
20
0
+
×
22
15
21
0
+
×
23
15
22
0
+
×
24
15
23
0
+
×
25
15
24
0
+
×
05
26
15
25
0
+
×
27
15
26
0
+
×
28
15
27
0
+
×
29
15
28
0
+
×
30
15
29
0
+
×
31
15
30
0
+
×
06
February 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
05
01
15
31
0
+
×
06
02
15
32
0
+
×
03
15
33
0
+
×
04
15
34
0
+
×
05
15
35
0
+
×
06
15
36
0
+
×
07
15
37
0
+
×
08
15
38
0
+
×
07
09
15
39
0
+
×
10
15
40
0
+
×
11
15
41
0
建国記念の日
+
×
12
15
42
0
+
×
13
15
43
0
+
×
14
15
44
0
+
×
15
15
45
0
+
×
08
16
15
46
0
+
×
17
15
47
0
+
×
18
15
48
0
+
×
19
15
49
0
+
×
20
15
50
0
+
×
21
15
51
0
+
×
22
15
52
0
+
×
09
23
15
53
0
+
×
24
15
54
0
+
×
25
15
55
0
+
×
26
15
56
0
+
×
27
15
57
0
+
×
28
15
58
0
+
×
29
15
59
0
+
×
10
March 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
10
01
15
60
0
+
×
02
15
61
0
+
×
03
15
62
0
+
×
04
15
63
0
+
×
05
15
64
0
+
×
06
15
65
0
+
×
07
15
66
0
+
×
11
08
15
67
0
+
×
09
15
68
0
+
×
10
15
69
0
+
×
11
15
70
0
+
×
12
15
71
0
+
×
13
15
72
0
+
×
14
15
73
0
+
×
12
15
15
74
0
+
×
16
15
75
0
+
×
17
15
76
0
+
×
18
15
77
0
+
×
19
15
78
0
+
×
20
15
79
0
春分の日
+
×
21
15
80
0
+
×
13
22
15
81
0
+
×
23
15
82
0
+
×
24
15
83
0
+
×
25
15
84
0
+
×
26
15
85
0
+
×
27
15
86
0
+
×
28
15
87
0
+
×
14
29
15
88
0
+
×
30
15
89
0
+
×
31
15
90
0
+
×
15
April 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
14
01
15
91
0
+
×
02
15
92
0
+
×
03
15
93
0
+
×
04
15
94
0
+
×
15
05
15
95
0
+
×
06
15
96
0
+
×
07
15
97
0
+
×
08
15
98
0
+
×
09
15
99
0
+
×
10
15
100
0
+
×
11
15
101
0
+
×
16
12
15
102
0
+
×
13
15
103
0
+
×
14
15
104
0
+
×
15
15
105
0
+
×
16
15
106
0
+
×
17
15
107
0
+
×
18
15
108
0
+
×
17
19
15
109
0
+
×
20
15
110
0
+
×
21
15
111
0
+
×
22
15
112
0
+
×
23
15
113
0
+
×
24
15
114
0
+
×
25
15
115
0
+
×
18
26
15
116
0
+
×
27
15
117
0
+
×
28
15
118
0
+
×
29
15
119
0
みどりの日
+
×
30
15
120
0
+
×
19
 
May 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
18
01
15
121
0
+
×
02
15
122
0
+
×
19
03
15
123
0
憲法記念日
+
×
04
15
124
0
国民の休日
+
×
05
15
125
0
こどもの日
+
×
06
15
126
0
+
×
07
15
127
0
+
×
08
15
128
0
+
×
09
15
129
0
+
×
20
10
15
130
0
+
×
11
15
131
0
+
×
12
15
132
0
+
×
13
15
133
0
+
×
14
15
134
0
+
×
15
15
135
0
+
×
16
15
136
0
+
×
21
17
15
137
0
+
×
18
15
138
0
+
×
19
15
139
0
+
×
20
15
140
0
+
×
21
15
141
0
+
×
22
15
142
0
+
×
23
15
143
0
+
×
22
24
15
144
0
+
×
25
15
145
0
+
×
26
15
146
0
+
×
27
15
147
0
+
×
28
15
148
0
+
×
29
15
149
0
+
×
30
15
150
0
+
×
23
31
15
151
0
+
×
June 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
23
01
15
152
0
+
×
02
15
153
0
+
×
03
15
154
0
+
×
04
15
155
0
+
×
05
15
156
0
+
×
06
15
157
0
+
×
24
07
15
158
0
+
×
08
15
159
0
+
×
09
15
160
0
+
×
10
15
161
0
+
×
11
15
162
0
+
×
12
15
163
0
+
×
13
15
164
0
+
×
25
14
15
165
0
+
×
15
15
166
0
+
×
16
15
167
0
+
×
17
15
168
0
+
×
18
15
169
0
+
×
19
15
170
0
+
×
20
15
171
0
+
×
26
21
15
172
0
+
×
22
15
173
0
+
×
23
15
174
0
+
×
24
15
175
0
+
×
25
15
176
0
+
×
26
15
177
0
+
×
27
15
178
0
+
×
27
28
15
179
0
+
×
29
15
180
0
+
×
30
15
181
0
+
×
28
July 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
182
0
+
×
02
15
183
0
+
×
03
15
184
0
+
×
04
15
185
0
+
×
28
05
15
186
0
+
×
06
15
187
0
+
×
07
15
188
0
+
×
08
15
189
0
+
×
09
15
190
0
+
×
10
15
191
0
+
×
11
15
192
0
+
×
29
12
15
193
0
+
×
13
15
194
0
+
×
14
15
195
0
+
×
15
15
196
0
+
×
16
15
197
0
+
×
17
15
198
0
+
×
18
15
199
0
+
×
30
19
15
200
0
海の日
+
×
20
15
201
0
+
×
21
15
202
0
+
×
22
15
203
0
+
×
23
15
204
0
+
×
24
15
205
0
+
×
25
15
206
0
+
×
31
26
15
207
0
+
×
27
15
208
0
+
×
28
15
209
0
+
×
29
15
210
0
+
×
30
15
211
0
+
×
31
15
212
0
+
×
32
August 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
213
0
+
×
32
02
15
214
0
+
×
03
15
215
0
+
×
04
15
216
0
+
×
05
15
217
0
+
×
06
15
218
0
+
×
07
15
219
0
+
×
08
15
220
0
+
×
33
09
15
221
0
+
×
10
15
222
0
+
×
11
15
223
0
+
×
12
15
224
0
+
×
13
15
225
0
+
×
14
15
226
0
+
×
15
15
227
0
+
×
34
16
15
228
0
+
×
17
15
229
0
+
×
18
15
230
0
+
×
19
15
231
0
+
×
20
15
232
0
+
×
21
15
233
0
+
×
22
15
234
0
+
×
35
23
15
235
0
+
×
24
15
236
0
+
×
25
15
237
0
+
×
26
15
238
0
+
×
27
15
239
0
+
×
28
15
240
0
+
×
29
15
241
0
+
×
36
30
15
242
0
+
×
31
15
243
0
+
×
 
September 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
244
0
+
×
02
15
245
0
+
×
03
15
246
0
+
×
04
15
247
0
+
×
05
15
248
0
+
×
37
06
15
249
0
+
×
07
15
250
0
+
×
08
15
251
0
+
×
09
15
252
0
+
×
10
15
253
0
+
×
11
15
254
0
+
×
12
15
255
0
+
×
38
13
15
256
0
+
×
14
15
257
0
+
×
15
15
258
0
+
×
16
15
259
0
+
×
17
15
260
0
+
×
18
15
261
0
+
×
19
15
262
0
+
×
39
20
15
263
0
敬老の日
+
×
21
15
264
0
+
×
22
15
265
0
+
×
23
15
266
0
秋分の日
+
×
24
15
267
0
+
×
25
15
268
0
+
×
26
15
269
0
+
×
40
27
15
270
0
+
×
28
15
271
0
+
×
29
15
272
0
+
×
30
15
273
0
+
×
41
October 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
274
0
+
×
02
15
275
0
+
×
03
15
276
0
+
×
41
04
15
277
0
+
×
05
15
278
0
+
×
06
15
279
0
+
×
07
15
280
0
+
×
08
15
281
0
+
×
09
15
282
0
+
×
10
15
283
0
+
×
42
11
15
284
0
体育の日
+
×
12
15
285
0
+
×
13
15
286
0
+
×
14
15
287
0
+
×
15
15
288
0
+
×
16
15
289
0
+
×
17
15
290
0
+
×
43
18
15
291
0
+
×
19
15
292
0
+
×
20
15
293
0
+
×
21
15
294
0
+
×
22
15
295
0
+
×
23
15
296
0
+
×
24
15
297
0
+
×
44
25
15
298
0
+
×
26
15
299
0
+
×
27
15
300
0
+
×
28
15
301
0
+
×
29
15
302
0
+
×
30
15
303
0
+
×
31
15
304
0
+
×
45
November 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
45
01
15
305
0
+
×
02
15
306
0
+
×
03
15
307
0
文化の日
+
×
04
15
308
0
+
×
05
15
309
0
+
×
06
15
310
0
+
×
07
15
311
0
+
×
46
08
15
312
0
+
×
09
15
313
0
+
×
10
15
314
0
+
×
11
15
315
0
+
×
12
15
316
0
+
×
13
15
317
0
+
×
14
15
318
0
+
×
47
15
15
319
0
+
×
16
15
320
0
+
×
17
15
321
0
+
×
18
15
322
0
+
×
19
15
323
0
+
×
20
15
324
0
+
×
21
15
325
0
+
×
48
22
15
326
0
+
×
23
15
327
0
勤労感謝の日
+
×
24
15
328
0
+
×
25
15
329
0
+
×
26
15
330
0
+
×
27
15
331
0
+
×
28
15
332
0
+
×
49
29
15
333
0
+
×
30
15
334
0
+
×
50
December 2004
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
335
0
+
×
02
15
336
0
+
×
03
15
337
0
+
×
04
15
338
0
+
×
05
15
339
0
+
×
50
06
15
340
0
+
×
07
15
341
0
+
×
08
15
342
0
+
×
09
15
343
0
+
×
10
15
344
0
+
×
11
15
345
0
+
×
12
15
346
0
+
×
51
13
15
347
0
+
×
14
15
348
0
+
×
15
15
349
0
+
×
16
15
350
0
+
×
17
15
351
0
+
×
18
15
352
0
+
×
19
15
353
0
+
×
52
20
15
354
0
+
×
21
15
355
0
+
×
22
15
356
0
+
×
23
15
357
0
天皇誕生日
+
×
24
15
358
0
+
×
25
15
359
0
+
×
26
15
360
0
+
×
53
27
15
361
0
+
×
28
15
362
0
+
×
29
15
363
0
+
×
30
15
364
0
+
×
31
15
365
0
銀行休業日（12月31日）
+
×
01
 
January 2005
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
53
01
15
366
0
元日
+
×
02
15
367
0
銀行休業日（1月2日）
+
×
01
03
15
368
0
銀行休業日（1月3日）
+
×
02
03
04
05
Public holidays
Weekend days
Days to take
Vacations
Days to take:
You can now adjust the optimization by clicking on the calendar
Holidays length:
Optimization factor:
?
Copy
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From to
:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide