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Birthdays
Holidays optimizer
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.
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Make
every
day
count
..in Finland

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Today, Friday, 5 December, 2025

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Chile
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South Africa
New Zealand
Israel
Turkey
Portugal
Monaco
Greece
Luxembourg
Working days world map
Russia
Ukraine
Sweden
Denmark
Norway
USA
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United Kingdom & Ireland
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China
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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 ()
January 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
0
0
Uudenvuodenpäivä
+
×
02
15
1
0
+
×
03
15
2
0
+
×
04
15
3
0
+
×
05
15
4
0
+
×
02
06
15
5
0
Loppiainen
+
×
07
15
6
0
+
×
08
15
7
0
+
×
09
15
8
0
+
×
10
15
9
0
+
×
11
15
10
0
+
×
12
15
11
0
+
×
03
13
15
12
0
+
×
14
15
13
0
+
×
15
15
14
0
+
×
16
15
15
0
+
×
17
15
16
0
+
×
18
15
17
0
+
×
19
15
18
0
+
×
04
20
15
19
0
+
×
21
15
20
0
+
×
22
15
21
0
+
×
23
15
22
0
+
×
24
15
23
0
+
×
25
15
24
0
+
×
26
15
25
0
+
×
05
27
15
26
0
+
×
28
15
27
0
+
×
29
15
28
0
+
×
30
15
29
0
+
×
31
15
30
0
+
×
06
February 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
05
01
15
31
0
+
×
02
15
32
0
+
×
06
03
15
33
0
+
×
04
15
34
0
+
×
05
15
35
0
+
×
06
15
36
0
+
×
07
15
37
0
+
×
08
15
38
0
+
×
09
15
39
0
+
×
07
10
15
40
0
+
×
11
15
41
0
+
×
12
15
42
0
+
×
13
15
43
0
+
×
14
15
44
0
+
×
15
15
45
0
+
×
16
15
46
0
+
×
08
17
15
47
0
+
×
18
15
48
0
+
×
19
15
49
0
+
×
20
15
50
0
+
×
21
15
51
0
+
×
22
15
52
0
+
×
23
15
53
0
+
×
09
24
15
54
0
+
×
25
15
55
0
+
×
26
15
56
0
+
×
27
15
57
0
+
×
28
15
58
0
+
×
10
March 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
09
01
15
59
0
+
×
02
15
60
0
+
×
10
03
15
61
0
+
×
04
15
62
0
+
×
05
15
63
0
+
×
06
15
64
0
+
×
07
15
65
0
+
×
08
15
66
0
+
×
09
15
67
0
+
×
11
10
15
68
0
+
×
11
15
69
0
+
×
12
15
70
0
+
×
13
15
71
0
+
×
14
15
72
0
+
×
15
15
73
0
+
×
16
15
74
0
+
×
12
17
15
75
0
+
×
18
15
76
0
+
×
19
15
77
0
+
×
20
15
78
0
+
×
21
15
79
0
+
×
22
15
80
0
+
×
23
15
81
0
+
×
13
24
15
82
0
+
×
25
15
83
0
+
×
26
15
84
0
+
×
27
15
85
0
+
×
28
15
86
0
+
×
29
15
87
0
+
×
30
15
88
0
+
×
14
31
15
89
0
+
×
April 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
14
01
15
90
0
+
×
02
15
91
0
+
×
03
15
92
0
+
×
04
15
93
0
Pitkäperjantai
+
×
05
15
94
0
+
×
06
15
95
0
Pääsiäispäivä
+
×
15
07
15
96
0
2. pääsiäispäivä
+
×
08
15
97
0
+
×
09
15
98
0
+
×
10
15
99
0
+
×
11
15
100
0
+
×
12
15
101
0
+
×
13
15
102
0
+
×
16
14
15
103
0
+
×
15
15
104
0
+
×
16
15
105
0
+
×
17
15
106
0
+
×
18
15
107
0
+
×
19
15
108
0
+
×
20
15
109
0
+
×
17
21
15
110
0
+
×
22
15
111
0
+
×
23
15
112
0
+
×
24
15
113
0
+
×
25
15
114
0
+
×
26
15
115
0
+
×
27
15
116
0
+
×
18
28
15
117
0
+
×
29
15
118
0
+
×
30
15
119
0
+
×
19
 
May 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
18
01
15
120
0
Vappu
+
×
02
15
121
0
+
×
03
15
122
0
+
×
04
15
123
0
+
×
19
05
15
124
0
+
×
06
15
125
0
+
×
07
15
126
0
+
×
08
15
127
0
+
×
09
15
128
0
+
×
10
15
129
0
+
×
11
15
130
0
+
×
20
12
15
131
0
+
×
13
15
132
0
+
×
14
15
133
0
+
×
15
15
134
0
Helatorstai
+
×
16
15
135
0
+
×
17
15
136
0
+
×
18
15
137
0
+
×
21
19
15
138
0
+
×
20
15
139
0
+
×
21
15
140
0
+
×
22
15
141
0
+
×
23
15
142
0
+
×
24
15
143
0
+
×
25
15
144
0
Helluntaipäivä
+
×
22
26
15
145
0
+
×
27
15
146
0
+
×
28
15
147
0
+
×
29
15
148
0
+
×
30
15
149
0
+
×
31
15
150
0
+
×
23
June 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
151
0
+
×
23
02
15
152
0
+
×
03
15
153
0
+
×
04
15
154
0
+
×
05
15
155
0
+
×
06
15
156
0
+
×
07
15
157
0
+
×
08
15
158
0
+
×
24
09
15
159
0
+
×
10
15
160
0
+
×
11
15
161
0
+
×
12
15
162
0
+
×
13
15
163
0
+
×
14
15
164
0
+
×
15
15
165
0
+
×
25
16
15
166
0
+
×
17
15
167
0
+
×
18
15
168
0
+
×
19
15
169
0
+
×
20
15
170
0
+
×
21
15
171
0
Juhannuspäivä
+
×
22
15
172
0
+
×
26
23
15
173
0
+
×
24
15
174
0
+
×
25
15
175
0
+
×
26
15
176
0
+
×
27
15
177
0
+
×
28
15
178
0
+
×
29
15
179
0
+
×
27
30
15
180
0
+
×
July 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
181
0
+
×
02
15
182
0
+
×
03
15
183
0
+
×
04
15
184
0
+
×
05
15
185
0
+
×
06
15
186
0
+
×
28
07
15
187
0
+
×
08
15
188
0
+
×
09
15
189
0
+
×
10
15
190
0
+
×
11
15
191
0
+
×
12
15
192
0
+
×
13
15
193
0
+
×
29
14
15
194
0
+
×
15
15
195
0
+
×
16
15
196
0
+
×
17
15
197
0
+
×
18
15
198
0
+
×
19
15
199
0
+
×
20
15
200
0
+
×
30
21
15
201
0
+
×
22
15
202
0
+
×
23
15
203
0
+
×
24
15
204
0
+
×
25
15
205
0
+
×
26
15
206
0
+
×
27
15
207
0
+
×
31
28
15
208
0
+
×
29
15
209
0
+
×
30
15
210
0
+
×
31
15
211
0
+
×
32
August 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
212
0
+
×
02
15
213
0
+
×
03
15
214
0
+
×
32
04
15
215
0
+
×
05
15
216
0
+
×
06
15
217
0
+
×
07
15
218
0
+
×
08
15
219
0
+
×
09
15
220
0
+
×
10
15
221
0
+
×
33
11
15
222
0
+
×
12
15
223
0
+
×
13
15
224
0
+
×
14
15
225
0
+
×
15
15
226
0
+
×
16
15
227
0
+
×
17
15
228
0
+
×
34
18
15
229
0
+
×
19
15
230
0
+
×
20
15
231
0
+
×
21
15
232
0
+
×
22
15
233
0
+
×
23
15
234
0
+
×
24
15
235
0
+
×
35
25
15
236
0
+
×
26
15
237
0
+
×
27
15
238
0
+
×
28
15
239
0
+
×
29
15
240
0
+
×
30
15
241
0
+
×
31
15
242
0
+
×
36
 
September 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
243
0
+
×
02
15
244
0
+
×
03
15
245
0
+
×
04
15
246
0
+
×
05
15
247
0
+
×
06
15
248
0
+
×
07
15
249
0
+
×
37
08
15
250
0
+
×
09
15
251
0
+
×
10
15
252
0
+
×
11
15
253
0
+
×
12
15
254
0
+
×
13
15
255
0
+
×
14
15
256
0
+
×
38
15
15
257
0
+
×
16
15
258
0
+
×
17
15
259
0
+
×
18
15
260
0
+
×
19
15
261
0
+
×
20
15
262
0
+
×
21
15
263
0
+
×
39
22
15
264
0
+
×
23
15
265
0
+
×
24
15
266
0
+
×
25
15
267
0
+
×
26
15
268
0
+
×
27
15
269
0
+
×
28
15
270
0
+
×
40
29
15
271
0
+
×
30
15
272
0
+
×
41
October 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
273
0
+
×
02
15
274
0
+
×
03
15
275
0
+
×
04
15
276
0
+
×
05
15
277
0
+
×
41
06
15
278
0
+
×
07
15
279
0
+
×
08
15
280
0
+
×
09
15
281
0
+
×
10
15
282
0
+
×
11
15
283
0
+
×
12
15
284
0
+
×
42
13
15
285
0
+
×
14
15
286
0
+
×
15
15
287
0
+
×
16
15
288
0
+
×
17
15
289
0
+
×
18
15
290
0
+
×
19
15
291
0
+
×
43
20
15
292
0
+
×
21
15
293
0
+
×
22
15
294
0
+
×
23
15
295
0
+
×
24
15
296
0
+
×
25
15
297
0
+
×
26
15
298
0
+
×
44
27
15
299
0
+
×
28
15
300
0
+
×
29
15
301
0
+
×
30
15
302
0
+
×
31
15
303
0
+
×
45
November 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
304
0
Pyhäinpäivä
+
×
02
15
305
0
+
×
45
03
15
306
0
+
×
04
15
307
0
+
×
05
15
308
0
+
×
06
15
309
0
+
×
07
15
310
0
+
×
08
15
311
0
+
×
09
15
312
0
+
×
46
10
15
313
0
+
×
11
15
314
0
+
×
12
15
315
0
+
×
13
15
316
0
+
×
14
15
317
0
+
×
15
15
318
0
+
×
16
15
319
0
+
×
47
17
15
320
0
+
×
18
15
321
0
+
×
19
15
322
0
+
×
20
15
323
0
+
×
21
15
324
0
+
×
22
15
325
0
+
×
23
15
326
0
+
×
48
24
15
327
0
+
×
25
15
328
0
+
×
26
15
329
0
+
×
27
15
330
0
+
×
28
15
331
0
+
×
29
15
332
0
+
×
30
15
333
0
+
×
49
December 1969
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
334
0
+
×
02
15
335
0
+
×
03
15
336
0
+
×
04
15
337
0
+
×
05
15
338
0
+
×
06
15
339
0
Itsenäisyyspäivä
+
×
07
15
340
0
+
×
50
08
15
341
0
+
×
09
15
342
0
+
×
10
15
343
0
+
×
11
15
344
0
+
×
12
15
345
0
+
×
13
15
346
0
+
×
14
15
347
0
+
×
51
15
15
348
0
+
×
16
15
349
0
+
×
17
15
350
0
+
×
18
15
351
0
+
×
19
15
352
0
+
×
20
15
353
0
+
×
21
15
354
0
+
×
52
22
15
355
0
+
×
23
15
356
0
+
×
24
15
357
0
+
×
25
15
358
0
Joulupäivä
+
×
26
15
359
0
Tapaninpäivä
+
×
27
15
360
0
+
×
28
15
361
0
+
×
01
29
15
362
0
+
×
30
15
363
0
+
×
31
15
364
0
+
×
02
 
January 1970
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
365
0
Uudenvuodenpäivä
+
×
02
03
04
05
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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:
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I have to be at work
I know I want to be on vacation
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