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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 Deutschland
| Berlin

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Today, thursday, 8 january, 2026

Working day :
Week : / 52
Day of the year : /
Working day of the year : /
Time (Europe/Berlin) : 05:38

Working days

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