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Birthdays
Holidays optimizer
New version 2026
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.
Send
Make
every
day
count
..in Poland
| National public holidays

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Today, wednesday, 7 january, 2026

Working day :
Week : / 52
Day of the year : /
Working day of the year : /
Time (Europe/Warsaw) : 22:52

Working days

GB | PL 
Employee 
South Korea
Canada
Italia
España
South Africa
New Zealand
Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Brasil
Greece
Luxembourg
Australia
Working days world map
Deutschland
Slovenia
Slovakia
Estonia
Croatia
Serbia
Romania
Bulgaria
Czech Republic
Russia
Ukraine
Turkey
France
Belarus
USA
Schweiz
Netherlands
Belgique
China
...
xxxx
From to
days :
working days :
week-end days :
custom dates :
public holidays :
Define a custom period
×
From:
to:
Morning
Afternoon
Reminder
Reminder
make it periodic
Make it periodic
Description
working hours
Working hours
/day
Teleworking
salary
Salary
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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
between
and
How many vacation blocks?   (    or )        
Each vacation should be at least 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 2026
week
mon
tue
wed
thu
fri
sat
sun
01
02
07
15
0
0
+
×
08
15
1
0
+
×
09
15
2
0
+
×
10
15
3
0
+
×
11
15
4
0
+
×
03
12
15
5
0
+
×
13
15
6
0
+
×
14
15
7
0
+
×
15
15
8
0
+
×
16
15
9
0
+
×
17
15
10
0
+
×
18
15
11
0
+
×
04
19
15
12
0
+
×
20
15
13
0
+
×
21
15
14
0
+
×
22
15
15
0
+
×
23
15
16
0
+
×
24
15
17
0
+
×
25
15
18
0
+
×
05
26
15
19
0
+
×
27
15
20
0
+
×
28
15
21
0
+
×
29
15
22
0
+
×
30
15
23
0
+
×
31
15
24
0
+
×
06
February 2026
week
mon
tue
wed
thu
fri
sat
sun
05
01
15
25
0
+
×
06
02
15
26
0
+
×
03
15
27
0
+
×
04
15
28
0
+
×
05
15
29
0
+
×
06
15
30
0
+
×
07
15
31
0
+
×
08
15
32
0
+
×
07
09
15
33
0
+
×
10
15
34
0
+
×
11
15
35
0
+
×
12
15
36
0
+
×
13
15
37
0
+
×
14
15
38
0
+
×
15
15
39
0
+
×
08
16
15
40
0
+
×
17
15
41
0
+
×
18
15
42
0
+
×
19
15
43
0
+
×
20
15
44
0
+
×
21
15
45
0
+
×
22
15
46
0
+
×
09
23
15
47
0
+
×
24
15
48
0
+
×
25
15
49
0
+
×
26
15
50
0
+
×
27
15
51
0
+
×
28
15
52
0
+
×
10
March 2026
week
mon
tue
wed
thu
fri
sat
sun
09
01
15
53
0
+
×
10
02
15
54
0
+
×
03
15
55
0
+
×
04
15
56
0
+
×
05
15
57
0
+
×
06
15
58
0
+
×
07
15
59
0
+
×
08
15
60
0
+
×
11
09
15
61
0
+
×
10
15
62
0
+
×
11
15
63
0
+
×
12
15
64
0
+
×
13
15
65
0
+
×
14
15
66
0
+
×
15
15
67
0
+
×
12
16
15
68
0
+
×
17
15
69
0
+
×
18
15
70
0
+
×
19
15
71
0
+
×
20
15
72
0
+
×
21
15
73
0
+
×
22
15
74
0
+
×
13
23
15
75
0
+
×
24
15
76
0
+
×
25
15
77
0
+
×
26
15
78
0
+
×
27
15
79
0
+
×
28
15
80
0
+
×
29
15
81
0
+
×
14
30
15
82
0
+
×
31
15
83
0
+
×
April 2026
week
mon
tue
wed
thu
fri
sat
sun
14
01
15
84
0
+
×
02
15
85
0
+
×
03
15
86
0
+
×
04
15
87
0
+
×
05
15
88
0
Easter Sunday
+
×
15
06
15
89
0
Easter Monday
+
×
07
15
90
0
+
×
08
15
91
0
+
×
09
15
92
0
+
×
10
15
93
0
+
×
11
15
94
0
+
×
12
15
95
0
+
×
16
13
15
96
0
+
×
14
15
97
0
+
×
15
15
98
0
+
×
16
15
99
0
+
×
17
15
100
0
+
×
18
15
101
0
+
×
19
15
102
0
+
×
17
20
15
103
0
+
×
21
15
104
0
+
×
22
15
105
0
+
×
23
15
106
0
+
×
24
15
107
0
+
×
25
15
108
0
+
×
26
15
109
0
+
×
18
27
15
110
0
+
×
28
15
111
0
+
×
29
15
112
0
+
×
30
15
113
0
+
×
19
 
May 2026
week
mon
tue
wed
thu
fri
sat
sun
18
01
15
114
0
Labour Day
+
×
02
15
115
0
+
×
03
15
116
0
Constitution Day
+
×
19
04
15
117
0
+
×
05
15
118
0
+
×
06
15
119
0
+
×
07
15
120
0
+
×
08
15
121
0
+
×
09
15
122
0
+
×
10
15
123
0
+
×
20
11
15
124
0
+
×
12
15
125
0
+
×
13
15
126
0
+
×
14
15
127
0
+
×
15
15
128
0
+
×
16
15
129
0
+
×
17
15
130
0
+
×
21
18
15
131
0
+
×
19
15
132
0
+
×
20
15
133
0
+
×
21
15
134
0
+
×
22
15
135
0
+
×
23
15
136
0
+
×
24
15
137
0
Pentecost Sunday
+
×
22
25
15
138
0
+
×
26
15
139
0
+
×
27
15
140
0
+
×
28
15
141
0
+
×
29
15
142
0
+
×
30
15
143
0
+
×
31
15
144
0
+
×
23
June 2026
week
mon
tue
wed
thu
fri
sat
sun
23
01
15
145
0
+
×
02
15
146
0
+
×
03
15
147
0
+
×
04
15
148
0
Corpus Christi
+
×
05
15
149
0
+
×
06
15
150
0
+
×
07
15
151
0
+
×
24
08
15
152
0
+
×
09
15
153
0
+
×
10
15
154
0
+
×
11
15
155
0
+
×
12
15
156
0
+
×
13
15
157
0
+
×
14
15
158
0
+
×
25
15
15
159
0
+
×
16
15
160
0
+
×
17
15
161
0
+
×
18
15
162
0
+
×
19
15
163
0
+
×
20
15
164
0
+
×
21
15
165
0
+
×
26
22
15
166
0
+
×
23
15
167
0
+
×
24
15
168
0
+
×
25
15
169
0
+
×
26
15
170
0
+
×
27
15
171
0
+
×
28
15
172
0
+
×
27
29
15
173
0
+
×
30
15
174
0
+
×
28
July 2026
week
mon
tue
wed
thu
fri
sat
sun
27
01
15
175
0
+
×
02
15
176
0
+
×
03
15
177
0
+
×
04
15
178
0
+
×
05
15
179
0
+
×
28
06
15
180
0
+
×
07
15
181
0
+
×
08
15
182
0
+
×
09
15
183
0
+
×
10
15
184
0
+
×
11
15
185
0
+
×
12
15
186
0
+
×
29
13
15
187
0
+
×
14
15
188
0
+
×
15
15
189
0
+
×
16
15
190
0
+
×
17
15
191
0
+
×
18
15
192
0
+
×
19
15
193
0
+
×
30
20
15
194
0
+
×
21
15
195
0
+
×
22
15
196
0
+
×
23
15
197
0
+
×
24
15
198
0
+
×
25
15
199
0
+
×
26
15
200
0
+
×
31
27
15
201
0
+
×
28
15
202
0
+
×
29
15
203
0
+
×
30
15
204
0
+
×
31
15
205
0
+
×
32
August 2026
week
mon
tue
wed
thu
fri
sat
sun
31
01
15
206
0
+
×
02
15
207
0
+
×
32
03
15
208
0
+
×
04
15
209
0
+
×
05
15
210
0
+
×
06
15
211
0
+
×
07
15
212
0
+
×
08
15
213
0
+
×
09
15
214
0
+
×
33
10
15
215
0
+
×
11
15
216
0
+
×
12
15
217
0
+
×
13
15
218
0
+
×
14
15
219
0
+
×
15
15
220
0
Assumption
+
×
16
15
221
0
+
×
34
17
15
222
0
+
×
18
15
223
0
+
×
19
15
224
0
+
×
20
15
225
0
+
×
21
15
226
0
+
×
22
15
227
0
+
×
23
15
228
0
+
×
35
24
15
229
0
+
×
25
15
230
0
+
×
26
15
231
0
+
×
27
15
232
0
+
×
28
15
233
0
+
×
29
15
234
0
+
×
30
15
235
0
+
×
36
31
15
236
0
+
×
 
September 2026
week
mon
tue
wed
thu
fri
sat
sun
36
01
15
237
0
+
×
02
15
238
0
+
×
03
15
239
0
+
×
04
15
240
0
+
×
05
15
241
0
+
×
06
15
242
0
+
×
37
07
15
243
0
+
×
08
15
244
0
+
×
09
15
245
0
+
×
10
15
246
0
+
×
11
15
247
0
+
×
12
15
248
0
+
×
13
15
249
0
+
×
38
14
15
250
0
+
×
15
15
251
0
+
×
16
15
252
0
+
×
17
15
253
0
+
×
18
15
254
0
+
×
19
15
255
0
+
×
20
15
256
0
+
×
39
21
15
257
0
+
×
22
15
258
0
+
×
23
15
259
0
+
×
24
15
260
0
+
×
25
15
261
0
+
×
26
15
262
0
+
×
27
15
263
0
+
×
40
28
15
264
0
+
×
29
15
265
0
+
×
30
15
266
0
+
×
41
October 2026
week
mon
tue
wed
thu
fri
sat
sun
40
01
15
267
0
+
×
02
15
268
0
+
×
03
15
269
0
+
×
04
15
270
0
+
×
41
05
15
271
0
+
×
06
15
272
0
+
×
07
15
273
0
+
×
08
15
274
0
+
×
09
15
275
0
+
×
10
15
276
0
+
×
11
15
277
0
+
×
42
12
15
278
0
+
×
13
15
279
0
+
×
14
15
280
0
+
×
15
15
281
0
+
×
16
15
282
0
+
×
17
15
283
0
+
×
18
15
284
0
+
×
43
19
15
285
0
+
×
20
15
286
0
+
×
21
15
287
0
+
×
22
15
288
0
+
×
23
15
289
0
+
×
24
15
290
0
+
×
25
15
291
0
+
×
44
26
15
292
0
+
×
27
15
293
0
+
×
28
15
294
0
+
×
29
15
295
0
+
×
30
15
296
0
+
×
31
15
297
0
+
×
45
November 2026
week
mon
tue
wed
thu
fri
sat
sun
44
01
15
298
0
All Saints' Day
+
×
45
02
15
299
0
+
×
03
15
300
0
+
×
04
15
301
0
+
×
05
15
302
0
+
×
06
15
303
0
+
×
07
15
304
0
+
×
08
15
305
0
+
×
46
09
15
306
0
+
×
10
15
307
0
+
×
11
15
308
0
Independence Day
+
×
12
15
309
0
+
×
13
15
310
0
+
×
14
15
311
0
+
×
15
15
312
0
+
×
47
16
15
313
0
+
×
17
15
314
0
+
×
18
15
315
0
+
×
19
15
316
0
+
×
20
15
317
0
+
×
21
15
318
0
+
×
22
15
319
0
+
×
48
23
15
320
0
+
×
24
15
321
0
+
×
25
15
322
0
+
×
26
15
323
0
+
×
27
15
324
0
+
×
28
15
325
0
+
×
29
15
326
0
+
×
49
30
15
327
0
+
×
December 2026
week
mon
tue
wed
thu
fri
sat
sun
49
01
15
328
0
+
×
02
15
329
0
+
×
03
15
330
0
+
×
04
15
331
0
+
×
05
15
332
0
+
×
06
15
333
0
+
×
50
07
15
334
0
+
×
08
15
335
0
+
×
09
15
336
0
+
×
10
15
337
0
+
×
11
15
338
0
+
×
12
15
339
0
+
×
13
15
340
0
+
×
51
14
15
341
0
+
×
15
15
342
0
+
×
16
15
343
0
+
×
17
15
344
0
+
×
18
15
345
0
+
×
19
15
346
0
+
×
20
15
347
0
+
×
52
21
15
348
0
+
×
22
15
349
0
+
×
23
15
350
0
+
×
24
15
351
0
Christmas Eve
+
×
25
15
352
0
Christmas
+
×
26
15
353
0
Boxing Day
+
×
27
15
354
0
+
×
53
28
15
355
0
+
×
29
15
356
0
+
×
30
15
357
0
+
×
31
15
358
0
+
×
01
 
January 2027
week
mon
tue
wed
thu
fri
sat
sun
53
01
15
359
0
New Year's Day
+
×
02
15
360
0
+
×
03
15
361
0
+
×
01
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:
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Copy
×
From to
:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide