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Birthdays
Holidays optimizer
Define a period
AI Assistant beta
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”
Assistant: I understand all languages.
Send
..in Canada
| Ontario
Today, Wednesday, 12 February, 2025

Working day : yes
Week : 07 / 52
Day of the year : 43 / 365
Working day of the year : 30 / 252
Time (UTC -05) : 04:06 pm

Working days

EN | 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:
weekend days:
custom dates:
public holidays:
Define a period
×
From:
Morning
Afternoon
to:
Morning
Afternoon
Reminder
Reminder
make it periodic
make it periodic
Description
work hours
Work hours
/day
Teleworking
wages
Wages
$
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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
from  
 to 
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 ()
February 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
05
06
07
12
15
0
0
+
×
13
15
1
0
+
×
14
15
2
0
+
×
15
15
3
0
+
×
08
16
15
4
0
+
×
17
15
5
0
Family Day
+
×
18
15
6
0
+
×
19
15
7
0
+
×
20
15
8
0
+
×
21
15
9
0
+
×
22
15
10
0
+
×
09
23
15
11
0
+
×
24
15
12
0
+
×
25
15
13
0
+
×
26
15
14
0
+
×
27
15
15
0
+
×
28
15
16
0
+
×
10
March 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
09
01
15
17
0
+
×
10
02
15
18
0
+
×
03
15
19
0
+
×
04
15
20
0
+
×
05
15
21
0
+
×
06
15
22
0
+
×
07
15
23
0
+
×
08
15
24
0
+
×
11
09
15
25
0
+
×
10
15
26
0
+
×
11
15
27
0
+
×
12
15
28
0
+
×
13
15
29
0
+
×
14
15
30
0
+
×
15
15
31
0
+
×
12
16
15
32
0
+
×
17
15
33
0
+
×
18
15
34
0
+
×
19
15
35
0
+
×
20
15
36
0
+
×
21
15
37
0
+
×
22
15
38
0
+
×
13
23
15
39
0
+
×
24
15
40
0
+
×
25
15
41
0
+
×
26
15
42
0
+
×
27
15
43
0
+
×
28
15
44
0
+
×
29
15
45
0
+
×
14
30
15
46
0
+
×
31
15
47
0
+
×
April 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
14
01
15
48
0
+
×
02
15
49
0
+
×
03
15
50
0
+
×
04
15
51
0
+
×
05
15
52
0
+
×
15
06
15
53
0
+
×
07
15
54
0
+
×
08
15
55
0
+
×
09
15
56
0
+
×
10
15
57
0
+
×
11
15
58
0
+
×
12
15
59
0
+
×
16
13
15
60
0
+
×
14
15
61
0
+
×
15
15
62
0
+
×
16
15
63
0
+
×
17
15
64
0
+
×
18
15
65
0
Good Friday
+
×
19
15
66
0
+
×
17
20
15
67
0
+
×
21
15
68
0
+
×
22
15
69
0
+
×
23
15
70
0
+
×
24
15
71
0
+
×
25
15
72
0
+
×
26
15
73
0
+
×
18
27
15
74
0
+
×
28
15
75
0
+
×
29
15
76
0
+
×
30
15
77
0
+
×
19
May 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
18
01
15
78
0
+
×
02
15
79
0
+
×
03
15
80
0
+
×
19
04
15
81
0
+
×
05
15
82
0
+
×
06
15
83
0
+
×
07
15
84
0
+
×
08
15
85
0
+
×
09
15
86
0
+
×
10
15
87
0
+
×
20
11
15
88
0
+
×
12
15
89
0
+
×
13
15
90
0
+
×
14
15
91
0
+
×
15
15
92
0
+
×
16
15
93
0
+
×
17
15
94
0
+
×
21
18
15
95
0
+
×
19
15
96
0
Victoria Day
+
×
20
15
97
0
+
×
21
15
98
0
+
×
22
15
99
0
+
×
23
15
100
0
+
×
24
15
101
0
+
×
22
25
15
102
0
+
×
26
15
103
0
+
×
27
15
104
0
+
×
28
15
105
0
+
×
29
15
106
0
+
×
30
15
107
0
+
×
31
15
108
0
+
×
23
 
June 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
23
01
15
109
0
+
×
02
15
110
0
+
×
03
15
111
0
+
×
04
15
112
0
+
×
05
15
113
0
+
×
06
15
114
0
+
×
07
15
115
0
+
×
24
08
15
116
0
+
×
09
15
117
0
+
×
10
15
118
0
+
×
11
15
119
0
+
×
12
15
120
0
+
×
13
15
121
0
+
×
14
15
122
0
+
×
25
15
15
123
0
+
×
16
15
124
0
+
×
17
15
125
0
+
×
18
15
126
0
+
×
19
15
127
0
+
×
20
15
128
0
+
×
21
15
129
0
+
×
26
22
15
130
0
+
×
23
15
131
0
+
×
24
15
132
0
+
×
25
15
133
0
+
×
26
15
134
0
+
×
27
15
135
0
+
×
28
15
136
0
+
×
27
29
15
137
0
+
×
30
15
138
0
+
×
28
July 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
27
01
15
139
0
Canada Day
+
×
02
15
140
0
+
×
03
15
141
0
+
×
04
15
142
0
+
×
05
15
143
0
+
×
28
06
15
144
0
+
×
07
15
145
0
+
×
08
15
146
0
+
×
09
15
147
0
+
×
10
15
148
0
+
×
11
15
149
0
+
×
12
15
150
0
+
×
29
13
15
151
0
+
×
14
15
152
0
+
×
15
15
153
0
+
×
16
15
154
0
+
×
17
15
155
0
+
×
18
15
156
0
+
×
19
15
157
0
+
×
30
20
15
158
0
+
×
21
15
159
0
+
×
22
15
160
0
+
×
23
15
161
0
+
×
24
15
162
0
+
×
25
15
163
0
+
×
26
15
164
0
+
×
31
27
15
165
0
+
×
28
15
166
0
+
×
29
15
167
0
+
×
30
15
168
0
+
×
31
15
169
0
+
×
32
August 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
31
01
15
170
0
+
×
02
15
171
0
+
×
32
03
15
172
0
+
×
04
15
173
0
+
×
05
15
174
0
+
×
06
15
175
0
+
×
07
15
176
0
+
×
08
15
177
0
+
×
09
15
178
0
+
×
33
10
15
179
0
+
×
11
15
180
0
+
×
12
15
181
0
+
×
13
15
182
0
+
×
14
15
183
0
+
×
15
15
184
0
+
×
16
15
185
0
+
×
34
17
15
186
0
+
×
18
15
187
0
+
×
19
15
188
0
+
×
20
15
189
0
+
×
21
15
190
0
+
×
22
15
191
0
+
×
23
15
192
0
+
×
35
24
15
193
0
+
×
25
15
194
0
+
×
26
15
195
0
+
×
27
15
196
0
+
×
28
15
197
0
+
×
29
15
198
0
+
×
30
15
199
0
+
×
36
31
15
200
0
+
×
September 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
36
01
15
201
0
Labour Day
+
×
02
15
202
0
+
×
03
15
203
0
+
×
04
15
204
0
+
×
05
15
205
0
+
×
06
15
206
0
+
×
37
07
15
207
0
+
×
08
15
208
0
+
×
09
15
209
0
+
×
10
15
210
0
+
×
11
15
211
0
+
×
12
15
212
0
+
×
13
15
213
0
+
×
38
14
15
214
0
+
×
15
15
215
0
+
×
16
15
216
0
+
×
17
15
217
0
+
×
18
15
218
0
+
×
19
15
219
0
+
×
20
15
220
0
+
×
39
21
15
221
0
+
×
22
15
222
0
+
×
23
15
223
0
+
×
24
15
224
0
+
×
25
15
225
0
+
×
26
15
226
0
+
×
27
15
227
0
+
×
40
28
15
228
0
+
×
29
15
229
0
+
×
30
15
230
0
+
×
41
 
October 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
40
01
15
231
0
+
×
02
15
232
0
+
×
03
15
233
0
+
×
04
15
234
0
+
×
41
05
15
235
0
+
×
06
15
236
0
+
×
07
15
237
0
+
×
08
15
238
0
+
×
09
15
239
0
+
×
10
15
240
0
+
×
11
15
241
0
+
×
42
12
15
242
0
+
×
13
15
243
0
Thanksgiving
+
×
14
15
244
0
+
×
15
15
245
0
+
×
16
15
246
0
+
×
17
15
247
0
+
×
18
15
248
0
+
×
43
19
15
249
0
+
×
20
15
250
0
+
×
21
15
251
0
+
×
22
15
252
0
+
×
23
15
253
0
+
×
24
15
254
0
+
×
25
15
255
0
+
×
44
26
15
256
0
+
×
27
15
257
0
+
×
28
15
258
0
+
×
29
15
259
0
+
×
30
15
260
0
+
×
31
15
261
0
+
×
45
November 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
44
01
15
262
0
+
×
45
02
15
263
0
+
×
03
15
264
0
+
×
04
15
265
0
+
×
05
15
266
0
+
×
06
15
267
0
+
×
07
15
268
0
+
×
08
15
269
0
+
×
46
09
15
270
0
+
×
10
15
271
0
+
×
11
15
272
0
+
×
12
15
273
0
+
×
13
15
274
0
+
×
14
15
275
0
+
×
15
15
276
0
+
×
47
16
15
277
0
+
×
17
15
278
0
+
×
18
15
279
0
+
×
19
15
280
0
+
×
20
15
281
0
+
×
21
15
282
0
+
×
22
15
283
0
+
×
48
23
15
284
0
+
×
24
15
285
0
+
×
25
15
286
0
+
×
26
15
287
0
+
×
27
15
288
0
+
×
28
15
289
0
+
×
29
15
290
0
+
×
49
30
15
291
0
+
×
December 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
49
01
15
292
0
+
×
02
15
293
0
+
×
03
15
294
0
+
×
04
15
295
0
+
×
05
15
296
0
+
×
06
15
297
0
+
×
50
07
15
298
0
+
×
08
15
299
0
+
×
09
15
300
0
+
×
10
15
301
0
+
×
11
15
302
0
+
×
12
15
303
0
+
×
13
15
304
0
+
×
51
14
15
305
0
+
×
15
15
306
0
+
×
16
15
307
0
+
×
17
15
308
0
+
×
18
15
309
0
+
×
19
15
310
0
+
×
20
15
311
0
+
×
52
21
15
312
0
+
×
22
15
313
0
+
×
23
15
314
0
+
×
24
15
315
0
+
×
25
15
316
0
Christmas
+
×
26
15
317
0
Boxing Day
+
×
27
15
318
0
+
×
01
28
15
319
0
+
×
29
15
320
0
+
×
30
15
321
0
+
×
31
15
322
0
+
×
02
January 2026
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
01
01
15
323
0
New Year's Day
+
×
02
03
04
05
06
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
×
From to
:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide