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Birthdays
Holidays optimizer
Define a custom 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.
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..in Canada
| Alberta
Today, wednesday, 28 may, 2025

Working day : yes
Week : 22 / 52
Day of the year : 148 / 365
Working day of the year : 102 / 252
Time (UTC -05) : 03:49 pm

Working days

CH | FR ▼
dss
Australia
South Africa
New Zealand
Russia
Ukraine
Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Netherlands
Belgique
Monaco
Greece
Luxembourg
Working days world map
USA
France
United Kingdom & Ireland
Brasil
India
China
South Korea
Japan
México
Colombia
Deutschland
Venezuela
Poland
Österreich
Italia
España
Argentina
Chile
Schweiz
...
xxxx
From to
days :
working days :
week-end days :
custom dates :
public holidays :
Define a custom period
×
From:
Morning
Afternoon
to:
Morning
Afternoon
Reminder
Reminder
▼
make it periodic
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/day
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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
between
and
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 2021
week
sun
mon
tue
wed
thu
fri
sat
53
01
15
0
0
New Year's Day
+
×
02
15
1
0
+
×
01
03
15
2
0
+
×
04
15
3
0
+
×
05
15
4
0
+
×
06
15
5
0
+
×
07
15
6
0
+
×
08
15
7
0
+
×
09
15
8
0
+
×
02
10
15
9
0
+
×
11
15
10
0
+
×
12
15
11
0
+
×
13
15
12
0
+
×
14
15
13
0
+
×
15
15
14
0
+
×
16
15
15
0
+
×
03
17
15
16
0
+
×
18
15
17
0
+
×
19
15
18
0
+
×
20
15
19
0
+
×
21
15
20
0
+
×
22
15
21
0
+
×
23
15
22
0
+
×
04
24
15
23
0
+
×
25
15
24
0
+
×
26
15
25
0
+
×
27
15
26
0
+
×
28
15
27
0
+
×
29
15
28
0
+
×
30
15
29
0
+
×
05
31
15
30
0
+
×
February 2021
week
sun
mon
tue
wed
thu
fri
sat
05
01
15
31
0
+
×
02
15
32
0
+
×
03
15
33
0
+
×
04
15
34
0
+
×
05
15
35
0
+
×
06
15
36
0
+
×
06
07
15
37
0
+
×
08
15
38
0
+
×
09
15
39
0
+
×
10
15
40
0
+
×
11
15
41
0
+
×
12
15
42
0
+
×
13
15
43
0
+
×
07
14
15
44
0
+
×
15
15
45
0
Family Day
+
×
16
15
46
0
+
×
17
15
47
0
+
×
18
15
48
0
+
×
19
15
49
0
+
×
20
15
50
0
+
×
08
21
15
51
0
+
×
22
15
52
0
+
×
23
15
53
0
+
×
24
15
54
0
+
×
25
15
55
0
+
×
26
15
56
0
+
×
27
15
57
0
+
×
09
28
15
58
0
+
×
10
March 2021
week
sun
mon
tue
wed
thu
fri
sat
09
01
15
59
0
+
×
02
15
60
0
+
×
03
15
61
0
+
×
04
15
62
0
+
×
05
15
63
0
+
×
06
15
64
0
+
×
10
07
15
65
0
+
×
08
15
66
0
+
×
09
15
67
0
+
×
10
15
68
0
+
×
11
15
69
0
+
×
12
15
70
0
+
×
13
15
71
0
+
×
11
14
15
72
0
+
×
15
15
73
0
+
×
16
15
74
0
+
×
17
15
75
0
+
×
18
15
76
0
+
×
19
15
77
0
+
×
20
15
78
0
+
×
12
21
15
79
0
+
×
22
15
80
0
+
×
23
15
81
0
+
×
24
15
82
0
+
×
25
15
83
0
+
×
26
15
84
0
+
×
27
15
85
0
+
×
13
28
15
86
0
+
×
29
15
87
0
+
×
30
15
88
0
+
×
31
15
89
0
+
×
14
April 2021
week
sun
mon
tue
wed
thu
fri
sat
13
01
15
90
0
+
×
02
15
91
0
Good Friday
+
×
03
15
92
0
+
×
14
04
15
93
0
+
×
05
15
94
0
+
×
06
15
95
0
+
×
07
15
96
0
+
×
08
15
97
0
+
×
09
15
98
0
+
×
10
15
99
0
+
×
15
11
15
100
0
+
×
12
15
101
0
+
×
13
15
102
0
+
×
14
15
103
0
+
×
15
15
104
0
+
×
16
15
105
0
+
×
17
15
106
0
+
×
16
18
15
107
0
+
×
19
15
108
0
+
×
20
15
109
0
+
×
21
15
110
0
+
×
22
15
111
0
+
×
23
15
112
0
+
×
24
15
113
0
+
×
17
25
15
114
0
+
×
26
15
115
0
+
×
27
15
116
0
+
×
28
15
117
0
+
×
29
15
118
0
+
×
30
15
119
0
+
×
18
 
May 2021
week
sun
mon
tue
wed
thu
fri
sat
17
01
15
120
0
+
×
18
02
15
121
0
+
×
03
15
122
0
+
×
04
15
123
0
+
×
05
15
124
0
+
×
06
15
125
0
+
×
07
15
126
0
+
×
08
15
127
0
+
×
19
09
15
128
0
+
×
10
15
129
0
+
×
11
15
130
0
+
×
12
15
131
0
+
×
13
15
132
0
+
×
14
15
133
0
+
×
15
15
134
0
+
×
20
16
15
135
0
+
×
17
15
136
0
+
×
18
15
137
0
+
×
19
15
138
0
+
×
20
15
139
0
+
×
21
15
140
0
+
×
22
15
141
0
+
×
21
23
15
142
0
+
×
24
15
143
0
Victoria Day
+
×
25
15
144
0
+
×
26
15
145
0
+
×
27
15
146
0
+
×
28
15
147
0
+
×
29
15
148
0
+
×
22
30
15
149
0
+
×
31
15
150
0
+
×
June 2021
week
sun
mon
tue
wed
thu
fri
sat
22
01
15
151
0
+
×
02
15
152
0
+
×
03
15
153
0
+
×
04
15
154
0
+
×
05
15
155
0
+
×
23
06
15
156
0
+
×
07
15
157
0
+
×
08
15
158
0
+
×
09
15
159
0
+
×
10
15
160
0
+
×
11
15
161
0
+
×
12
15
162
0
+
×
24
13
15
163
0
+
×
14
15
164
0
+
×
15
15
165
0
+
×
16
15
166
0
+
×
17
15
167
0
+
×
18
15
168
0
+
×
19
15
169
0
+
×
25
20
15
170
0
+
×
21
15
171
0
+
×
22
15
172
0
+
×
23
15
173
0
+
×
24
15
174
0
+
×
25
15
175
0
+
×
26
15
176
0
+
×
26
27
15
177
0
+
×
28
15
178
0
+
×
29
15
179
0
+
×
30
15
180
0
+
×
27
July 2021
week
sun
mon
tue
wed
thu
fri
sat
26
01
15
181
0
Canada Day
+
×
02
15
182
0
+
×
03
15
183
0
+
×
27
04
15
184
0
+
×
05
15
185
0
+
×
06
15
186
0
+
×
07
15
187
0
+
×
08
15
188
0
+
×
09
15
189
0
+
×
10
15
190
0
+
×
28
11
15
191
0
+
×
12
15
192
0
+
×
13
15
193
0
+
×
14
15
194
0
+
×
15
15
195
0
+
×
16
15
196
0
+
×
17
15
197
0
+
×
29
18
15
198
0
+
×
19
15
199
0
+
×
20
15
200
0
+
×
21
15
201
0
+
×
22
15
202
0
+
×
23
15
203
0
+
×
24
15
204
0
+
×
30
25
15
205
0
+
×
26
15
206
0
+
×
27
15
207
0
+
×
28
15
208
0
+
×
29
15
209
0
+
×
30
15
210
0
+
×
31
15
211
0
+
×
31
August 2021
week
sun
mon
tue
wed
thu
fri
sat
31
01
15
212
0
+
×
02
15
213
0
+
×
03
15
214
0
+
×
04
15
215
0
+
×
05
15
216
0
+
×
06
15
217
0
+
×
07
15
218
0
+
×
32
08
15
219
0
+
×
09
15
220
0
+
×
10
15
221
0
+
×
11
15
222
0
+
×
12
15
223
0
+
×
13
15
224
0
+
×
14
15
225
0
+
×
33
15
15
226
0
+
×
16
15
227
0
+
×
17
15
228
0
+
×
18
15
229
0
+
×
19
15
230
0
+
×
20
15
231
0
+
×
21
15
232
0
+
×
34
22
15
233
0
+
×
23
15
234
0
+
×
24
15
235
0
+
×
25
15
236
0
+
×
26
15
237
0
+
×
27
15
238
0
+
×
28
15
239
0
+
×
35
29
15
240
0
+
×
30
15
241
0
+
×
31
15
242
0
+
×
36
 
September 2021
week
sun
mon
tue
wed
thu
fri
sat
35
01
15
243
0
+
×
02
15
244
0
+
×
03
15
245
0
+
×
04
15
246
0
+
×
36
05
15
247
0
+
×
06
15
248
0
Labour Day
+
×
07
15
249
0
+
×
08
15
250
0
+
×
09
15
251
0
+
×
10
15
252
0
+
×
11
15
253
0
+
×
37
12
15
254
0
+
×
13
15
255
0
+
×
14
15
256
0
+
×
15
15
257
0
+
×
16
15
258
0
+
×
17
15
259
0
+
×
18
15
260
0
+
×
38
19
15
261
0
+
×
20
15
262
0
+
×
21
15
263
0
+
×
22
15
264
0
+
×
23
15
265
0
+
×
24
15
266
0
+
×
25
15
267
0
+
×
39
26
15
268
0
+
×
27
15
269
0
+
×
28
15
270
0
+
×
29
15
271
0
+
×
30
15
272
0
+
×
40
October 2021
week
sun
mon
tue
wed
thu
fri
sat
39
01
15
273
0
+
×
02
15
274
0
+
×
40
03
15
275
0
+
×
04
15
276
0
+
×
05
15
277
0
+
×
06
15
278
0
+
×
07
15
279
0
+
×
08
15
280
0
+
×
09
15
281
0
+
×
41
10
15
282
0
+
×
11
15
283
0
Thanksgiving
+
×
12
15
284
0
+
×
13
15
285
0
+
×
14
15
286
0
+
×
15
15
287
0
+
×
16
15
288
0
+
×
42
17
15
289
0
+
×
18
15
290
0
+
×
19
15
291
0
+
×
20
15
292
0
+
×
21
15
293
0
+
×
22
15
294
0
+
×
23
15
295
0
+
×
43
24
15
296
0
+
×
25
15
297
0
+
×
26
15
298
0
+
×
27
15
299
0
+
×
28
15
300
0
+
×
29
15
301
0
+
×
30
15
302
0
+
×
44
31
15
303
0
+
×
November 2021
week
sun
mon
tue
wed
thu
fri
sat
44
01
15
304
0
+
×
02
15
305
0
+
×
03
15
306
0
+
×
04
15
307
0
+
×
05
15
308
0
+
×
06
15
309
0
+
×
45
07
15
310
0
+
×
08
15
311
0
+
×
09
15
312
0
+
×
10
15
313
0
+
×
11
15
314
0
Remembrance Day
+
×
12
15
315
0
+
×
13
15
316
0
+
×
46
14
15
317
0
+
×
15
15
318
0
+
×
16
15
319
0
+
×
17
15
320
0
+
×
18
15
321
0
+
×
19
15
322
0
+
×
20
15
323
0
+
×
47
21
15
324
0
+
×
22
15
325
0
+
×
23
15
326
0
+
×
24
15
327
0
+
×
25
15
328
0
+
×
26
15
329
0
+
×
27
15
330
0
+
×
48
28
15
331
0
+
×
29
15
332
0
+
×
30
15
333
0
+
×
49
December 2021
week
sun
mon
tue
wed
thu
fri
sat
48
01
15
334
0
+
×
02
15
335
0
+
×
03
15
336
0
+
×
04
15
337
0
+
×
49
05
15
338
0
+
×
06
15
339
0
+
×
07
15
340
0
+
×
08
15
341
0
+
×
09
15
342
0
+
×
10
15
343
0
+
×
11
15
344
0
+
×
50
12
15
345
0
+
×
13
15
346
0
+
×
14
15
347
0
+
×
15
15
348
0
+
×
16
15
349
0
+
×
17
15
350
0
+
×
18
15
351
0
+
×
51
19
15
352
0
+
×
20
15
353
0
+
×
21
15
354
0
+
×
22
15
355
0
+
×
23
15
356
0
+
×
24
15
357
0
+
×
25
15
358
0
Christmas
+
×
52
26
15
359
0
+
×
27
15
360
0
+
×
28
15
361
0
+
×
29
15
362
0
+
×
30
15
363
0
+
×
31
15
364
0
+
×
01
 
January 2022
week
sun
mon
tue
wed
thu
fri
sat
52
01
15
365
0
New Year's Day
+
×
01
02
15
366
0
+
×
03
15
367
0
New Year's Day (obs.)
+
×
02
03
04
05
Public holidays
Week-end days
Days to take
Holidays
Days to take:
You can now adjust the optimization by clicking on the calendar
Holidays length:
Optimization factor:
?
Copy
×
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:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide