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Birthdays
Holidays optimizer
Define a period
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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 Croatia
Today, Sunday, 20 April, 2025

Working day : no (Easter)
Week : 16 / 52
Day of the year : 110 / 365
Working day of the year : 76 / 250
Time (UTC +01) : 19:55

Working days

EN | HR ▼
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Norway
Finland
Israel
Turkey
Poland
Russia
Ukraine
Argentina
Chile
Australia
South Africa
South Korea
New Zealand
Japan
México
Colombia
Venezuela
Working days world map
USA
Deutschland
United Kingdom & Ireland
Italia
España
Brasil
India
China
Belgique
Canada
Schweiz
Monaco
Portugal
Netherlands
Österreich
Greece
Luxembourg
Sweden
Denmark
...
xxxx
From to
days:
working days:
weekend days:
custom dates:
public holidays:
Define a period
×
From:
Morning
Afternoon
to:
Morning
Afternoon
Reminder
Reminder
▼
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make it periodic
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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 ()
January 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
53
01
15
0
0
New Year's Day
+
×
02
15
1
0
+
×
03
15
2
0
+
×
01
04
15
3
0
+
×
05
15
4
0
+
×
06
15
5
0
Epiphany
+
×
07
15
6
0
+
×
08
15
7
0
+
×
09
15
8
0
+
×
10
15
9
0
+
×
02
11
15
10
0
+
×
12
15
11
0
+
×
13
15
12
0
+
×
14
15
13
0
+
×
15
15
14
0
+
×
16
15
15
0
+
×
17
15
16
0
+
×
03
18
15
17
0
+
×
19
15
18
0
+
×
20
15
19
0
+
×
21
15
20
0
+
×
22
15
21
0
+
×
23
15
22
0
+
×
24
15
23
0
+
×
04
25
15
24
0
+
×
26
15
25
0
+
×
27
15
26
0
+
×
28
15
27
0
+
×
29
15
28
0
+
×
30
15
29
0
+
×
31
15
30
0
+
×
05
February 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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
+
×
07
15
37
0
+
×
06
08
15
38
0
+
×
09
15
39
0
+
×
10
15
40
0
+
×
11
15
41
0
+
×
12
15
42
0
+
×
13
15
43
0
+
×
14
15
44
0
+
×
07
15
15
45
0
+
×
16
15
46
0
+
×
17
15
47
0
+
×
18
15
48
0
+
×
19
15
49
0
+
×
20
15
50
0
+
×
21
15
51
0
+
×
08
22
15
52
0
+
×
23
15
53
0
+
×
24
15
54
0
+
×
25
15
55
0
+
×
26
15
56
0
+
×
27
15
57
0
+
×
28
15
58
0
+
×
09
29
15
59
0
+
×
10
March 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
09
01
15
60
0
+
×
02
15
61
0
+
×
03
15
62
0
+
×
04
15
63
0
+
×
05
15
64
0
+
×
06
15
65
0
+
×
10
07
15
66
0
+
×
08
15
67
0
+
×
09
15
68
0
+
×
10
15
69
0
+
×
11
15
70
0
+
×
12
15
71
0
+
×
13
15
72
0
+
×
11
14
15
73
0
+
×
15
15
74
0
+
×
16
15
75
0
+
×
17
15
76
0
+
×
18
15
77
0
+
×
19
15
78
0
+
×
20
15
79
0
+
×
12
21
15
80
0
+
×
22
15
81
0
+
×
23
15
82
0
+
×
24
15
83
0
+
×
25
15
84
0
+
×
26
15
85
0
+
×
27
15
86
0
+
×
13
28
15
87
0
+
×
29
15
88
0
+
×
30
15
89
0
+
×
31
15
90
0
+
×
14
April 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
13
01
15
91
0
+
×
02
15
92
0
+
×
03
15
93
0
Easter
+
×
14
04
15
94
0
Easter Monday
+
×
05
15
95
0
+
×
06
15
96
0
+
×
07
15
97
0
+
×
08
15
98
0
+
×
09
15
99
0
+
×
10
15
100
0
+
×
15
11
15
101
0
+
×
12
15
102
0
+
×
13
15
103
0
+
×
14
15
104
0
+
×
15
15
105
0
+
×
16
15
106
0
+
×
17
15
107
0
+
×
16
18
15
108
0
+
×
19
15
109
0
+
×
20
15
110
0
+
×
21
15
111
0
+
×
22
15
112
0
+
×
23
15
113
0
+
×
24
15
114
0
+
×
17
25
15
115
0
+
×
26
15
116
0
+
×
27
15
117
0
+
×
28
15
118
0
+
×
29
15
119
0
+
×
30
15
120
0
+
×
18
 
May 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
17
01
15
121
0
Labour Day
+
×
18
02
15
122
0
+
×
03
15
123
0
+
×
04
15
124
0
+
×
05
15
125
0
+
×
06
15
126
0
+
×
07
15
127
0
+
×
08
15
128
0
+
×
19
09
15
129
0
+
×
10
15
130
0
+
×
11
15
131
0
+
×
12
15
132
0
+
×
13
15
133
0
+
×
14
15
134
0
+
×
15
15
135
0
+
×
20
16
15
136
0
+
×
17
15
137
0
+
×
18
15
138
0
+
×
19
15
139
0
+
×
20
15
140
0
+
×
21
15
141
0
+
×
22
15
142
0
+
×
21
23
15
143
0
+
×
24
15
144
0
+
×
25
15
145
0
+
×
26
15
146
0
+
×
27
15
147
0
+
×
28
15
148
0
+
×
29
15
149
0
+
×
22
30
15
150
0
National Day
+
×
31
15
151
0
+
×
June 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
152
0
+
×
02
15
153
0
Corpus Christi
+
×
03
15
154
0
+
×
04
15
155
0
+
×
05
15
156
0
+
×
23
06
15
157
0
+
×
07
15
158
0
+
×
08
15
159
0
+
×
09
15
160
0
+
×
10
15
161
0
+
×
11
15
162
0
+
×
12
15
163
0
+
×
24
13
15
164
0
+
×
14
15
165
0
+
×
15
15
166
0
+
×
16
15
167
0
+
×
17
15
168
0
+
×
18
15
169
0
+
×
19
15
170
0
+
×
25
20
15
171
0
+
×
21
15
172
0
+
×
22
15
173
0
Anti-Fascist Struggle Day
+
×
23
15
174
0
+
×
24
15
175
0
+
×
25
15
176
0
+
×
26
15
177
0
+
×
26
27
15
178
0
+
×
28
15
179
0
+
×
29
15
180
0
+
×
30
15
181
0
+
×
27
July 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
26
01
15
182
0
+
×
02
15
183
0
+
×
03
15
184
0
+
×
27
04
15
185
0
+
×
05
15
186
0
+
×
06
15
187
0
+
×
07
15
188
0
+
×
08
15
189
0
+
×
09
15
190
0
+
×
10
15
191
0
+
×
28
11
15
192
0
+
×
12
15
193
0
+
×
13
15
194
0
+
×
14
15
195
0
+
×
15
15
196
0
+
×
16
15
197
0
+
×
17
15
198
0
+
×
29
18
15
199
0
+
×
19
15
200
0
+
×
20
15
201
0
+
×
21
15
202
0
+
×
22
15
203
0
+
×
23
15
204
0
+
×
24
15
205
0
+
×
30
25
15
206
0
+
×
26
15
207
0
+
×
27
15
208
0
+
×
28
15
209
0
+
×
29
15
210
0
+
×
30
15
211
0
+
×
31
15
212
0
+
×
31
August 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
213
0
+
×
02
15
214
0
+
×
03
15
215
0
+
×
04
15
216
0
+
×
05
15
217
0
Victory and Homeland Thanksgiving Day
+
×
06
15
218
0
+
×
07
15
219
0
+
×
32
08
15
220
0
+
×
09
15
221
0
+
×
10
15
222
0
+
×
11
15
223
0
+
×
12
15
224
0
+
×
13
15
225
0
+
×
14
15
226
0
+
×
33
15
15
227
0
Assumption Day
+
×
16
15
228
0
+
×
17
15
229
0
+
×
18
15
230
0
+
×
19
15
231
0
+
×
20
15
232
0
+
×
21
15
233
0
+
×
34
22
15
234
0
+
×
23
15
235
0
+
×
24
15
236
0
+
×
25
15
237
0
+
×
26
15
238
0
+
×
27
15
239
0
+
×
28
15
240
0
+
×
35
29
15
241
0
+
×
30
15
242
0
+
×
31
15
243
0
+
×
36
 
September 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
35
01
15
244
0
+
×
02
15
245
0
+
×
03
15
246
0
+
×
04
15
247
0
+
×
36
05
15
248
0
+
×
06
15
249
0
+
×
07
15
250
0
+
×
08
15
251
0
+
×
09
15
252
0
+
×
10
15
253
0
+
×
11
15
254
0
+
×
37
12
15
255
0
+
×
13
15
256
0
+
×
14
15
257
0
+
×
15
15
258
0
+
×
16
15
259
0
+
×
17
15
260
0
+
×
18
15
261
0
+
×
38
19
15
262
0
+
×
20
15
263
0
+
×
21
15
264
0
+
×
22
15
265
0
+
×
23
15
266
0
+
×
24
15
267
0
+
×
25
15
268
0
+
×
39
26
15
269
0
+
×
27
15
270
0
+
×
28
15
271
0
+
×
29
15
272
0
+
×
30
15
273
0
+
×
40
October 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
39
01
15
274
0
+
×
02
15
275
0
+
×
40
03
15
276
0
+
×
04
15
277
0
+
×
05
15
278
0
+
×
06
15
279
0
+
×
07
15
280
0
+
×
08
15
281
0
+
×
09
15
282
0
+
×
41
10
15
283
0
+
×
11
15
284
0
+
×
12
15
285
0
+
×
13
15
286
0
+
×
14
15
287
0
+
×
15
15
288
0
+
×
16
15
289
0
+
×
42
17
15
290
0
+
×
18
15
291
0
+
×
19
15
292
0
+
×
20
15
293
0
+
×
21
15
294
0
+
×
22
15
295
0
+
×
23
15
296
0
+
×
43
24
15
297
0
+
×
25
15
298
0
+
×
26
15
299
0
+
×
27
15
300
0
+
×
28
15
301
0
+
×
29
15
302
0
+
×
30
15
303
0
+
×
44
31
15
304
0
+
×
November 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
305
0
All Saints' Day
+
×
02
15
306
0
+
×
03
15
307
0
+
×
04
15
308
0
+
×
05
15
309
0
+
×
06
15
310
0
+
×
45
07
15
311
0
+
×
08
15
312
0
+
×
09
15
313
0
+
×
10
15
314
0
+
×
11
15
315
0
+
×
12
15
316
0
+
×
13
15
317
0
+
×
46
14
15
318
0
+
×
15
15
319
0
+
×
16
15
320
0
+
×
17
15
321
0
+
×
18
15
322
0
Remembrance Day
+
×
19
15
323
0
+
×
20
15
324
0
+
×
47
21
15
325
0
+
×
22
15
326
0
+
×
23
15
327
0
+
×
24
15
328
0
+
×
25
15
329
0
+
×
26
15
330
0
+
×
27
15
331
0
+
×
48
28
15
332
0
+
×
29
15
333
0
+
×
30
15
334
0
+
×
49
December 1988
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
48
01
15
335
0
+
×
02
15
336
0
+
×
03
15
337
0
+
×
04
15
338
0
+
×
49
05
15
339
0
+
×
06
15
340
0
+
×
07
15
341
0
+
×
08
15
342
0
+
×
09
15
343
0
+
×
10
15
344
0
+
×
11
15
345
0
+
×
50
12
15
346
0
+
×
13
15
347
0
+
×
14
15
348
0
+
×
15
15
349
0
+
×
16
15
350
0
+
×
17
15
351
0
+
×
18
15
352
0
+
×
51
19
15
353
0
+
×
20
15
354
0
+
×
21
15
355
0
+
×
22
15
356
0
+
×
23
15
357
0
+
×
24
15
358
0
+
×
25
15
359
0
Christmas Day
+
×
52
26
15
360
0
St. Stephen's Day
+
×
27
15
361
0
+
×
28
15
362
0
+
×
29
15
363
0
+
×
30
15
364
0
+
×
31
15
365
0
+
×
01
 
January 1989
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
52
01
15
366
0
New Year's Day
+
×
01
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
×
From to
:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide