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Birthdays
Holidays optimizer
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 Österreich
| Wien (private Unternehmen)

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Today, sunday, 14 december, 2025

Working day :
Week : / 52
Day of the year : /
Working day of the year : /
Time (Europe/Vienna) : 20:09

Working days

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Denmark
Norway
Finland
Turkey
Portugal
Brasil
India
México
Colombia
Venezuela
Argentina
Japan
Monaco
Greece
Luxembourg
Australia
Working days world map
Deutschland
Poland
Österreich
Schweiz
Italia
USA
France
United Kingdom & Ireland
Netherlands
Belgique
China
South Korea
Canada
España
South Africa
New Zealand
Russia
Ukraine
Israel
...
xxxx
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days :
working days :
week-end days :
custom dates :
public holidays :
school holidays:
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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
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 2020
week
mon
tue
wed
thu
fri
sat
sun
01
01
15
0
0
Neujahrstag
+
×
02
15
1
0
+
×
03
15
2
0
+
×
04
15
3
0
+
×
05
15
4
0
+
×
02
06
15
5
0
Heilige Drei Könige
+
×
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 2020
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
+
×
29
15
59
0
+
×
10
March 2020
week
mon
tue
wed
thu
fri
sat
sun
09
01
15
60
0
+
×
10
02
15
61
0
+
×
03
15
62
0
+
×
04
15
63
0
+
×
05
15
64
0
+
×
06
15
65
0
+
×
07
15
66
0
+
×
08
15
67
0
+
×
11
09
15
68
0
+
×
10
15
69
0
+
×
11
15
70
0
+
×
12
15
71
0
+
×
13
15
72
0
+
×
14
15
73
0
+
×
15
15
74
0
+
×
12
16
15
75
0
+
×
17
15
76
0
+
×
18
15
77
0
+
×
19
15
78
0
+
×
20
15
79
0
+
×
21
15
80
0
+
×
22
15
81
0
+
×
13
23
15
82
0
+
×
24
15
83
0
+
×
25
15
84
0
+
×
26
15
85
0
+
×
27
15
86
0
+
×
28
15
87
0
+
×
29
15
88
0
+
×
14
30
15
89
0
+
×
31
15
90
0
+
×
April 2020
week
mon
tue
wed
thu
fri
sat
sun
14
01
15
91
0
+
×
02
15
92
0
+
×
03
15
93
0
+
×
04
15
94
0
+
×
05
15
95
0
+
×
15
06
15
96
0
+
×
07
15
97
0
+
×
08
15
98
0
+
×
09
15
99
0
+
×
10
15
100
0
+
×
11
15
101
0
+
×
12
15
102
0
+
×
16
13
15
103
0
Ostermontag
+
×
14
15
104
0
+
×
15
15
105
0
+
×
16
15
106
0
+
×
17
15
107
0
+
×
18
15
108
0
+
×
19
15
109
0
+
×
17
20
15
110
0
+
×
21
15
111
0
+
×
22
15
112
0
+
×
23
15
113
0
+
×
24
15
114
0
+
×
25
15
115
0
+
×
26
15
116
0
+
×
18
27
15
117
0
+
×
28
15
118
0
+
×
29
15
119
0
+
×
30
15
120
0
+
×
19
 
May 2020
week
mon
tue
wed
thu
fri
sat
sun
18
01
15
121
0
Staatsfeiertag
+
×
02
15
122
0
+
×
03
15
123
0
+
×
19
04
15
124
0
+
×
05
15
125
0
+
×
06
15
126
0
+
×
07
15
127
0
+
×
08
15
128
0
+
×
09
15
129
0
+
×
10
15
130
0
+
×
20
11
15
131
0
+
×
12
15
132
0
+
×
13
15
133
0
+
×
14
15
134
0
+
×
15
15
135
0
+
×
16
15
136
0
+
×
17
15
137
0
+
×
21
18
15
138
0
+
×
19
15
139
0
+
×
20
15
140
0
+
×
21
15
141
0
Christi Himmelfahrt
+
×
22
15
142
0
+
×
23
15
143
0
+
×
24
15
144
0
+
×
22
25
15
145
0
+
×
26
15
146
0
+
×
27
15
147
0
+
×
28
15
148
0
+
×
29
15
149
0
+
×
30
15
150
0
+
×
31
15
151
0
+
×
23
June 2020
week
mon
tue
wed
thu
fri
sat
sun
23
01
15
152
0
Pfingstmontag
+
×
02
15
153
0
+
×
03
15
154
0
+
×
04
15
155
0
+
×
05
15
156
0
+
×
06
15
157
0
+
×
07
15
158
0
+
×
24
08
15
159
0
+
×
09
15
160
0
+
×
10
15
161
0
+
×
11
15
162
0
Fronleichnam
+
×
12
15
163
0
+
×
13
15
164
0
+
×
14
15
165
0
+
×
25
15
15
166
0
+
×
16
15
167
0
+
×
17
15
168
0
+
×
18
15
169
0
+
×
19
15
170
0
+
×
20
15
171
0
+
×
21
15
172
0
+
×
26
22
15
173
0
+
×
23
15
174
0
+
×
24
15
175
0
+
×
25
15
176
0
+
×
26
15
177
0
+
×
27
15
178
0
+
×
28
15
179
0
+
×
27
29
15
180
0
+
×
30
15
181
0
+
×
28
July 2020
week
mon
tue
wed
thu
fri
sat
sun
27
01
15
182
0
+
×
02
15
183
0
+
×
03
15
184
0
+
×
04
15
185
0
+
×
05
15
186
0
+
×
28
06
15
187
0
+
×
07
15
188
0
+
×
08
15
189
0
+
×
09
15
190
0
+
×
10
15
191
0
+
×
11
15
192
0
+
×
12
15
193
0
+
×
29
13
15
194
0
+
×
14
15
195
0
+
×
15
15
196
0
+
×
16
15
197
0
+
×
17
15
198
0
+
×
18
15
199
0
+
×
19
15
200
0
+
×
30
20
15
201
0
+
×
21
15
202
0
+
×
22
15
203
0
+
×
23
15
204
0
+
×
24
15
205
0
+
×
25
15
206
0
+
×
26
15
207
0
+
×
31
27
15
208
0
+
×
28
15
209
0
+
×
29
15
210
0
+
×
30
15
211
0
+
×
31
15
212
0
+
×
32
August 2020
week
mon
tue
wed
thu
fri
sat
sun
31
01
15
213
0
+
×
02
15
214
0
+
×
32
03
15
215
0
+
×
04
15
216
0
+
×
05
15
217
0
+
×
06
15
218
0
+
×
07
15
219
0
+
×
08
15
220
0
+
×
09
15
221
0
+
×
33
10
15
222
0
+
×
11
15
223
0
+
×
12
15
224
0
+
×
13
15
225
0
+
×
14
15
226
0
+
×
15
15
227
0
Mariä Himmelfahrt
+
×
16
15
228
0
+
×
34
17
15
229
0
+
×
18
15
230
0
+
×
19
15
231
0
+
×
20
15
232
0
+
×
21
15
233
0
+
×
22
15
234
0
+
×
23
15
235
0
+
×
35
24
15
236
0
+
×
25
15
237
0
+
×
26
15
238
0
+
×
27
15
239
0
+
×
28
15
240
0
+
×
29
15
241
0
+
×
30
15
242
0
+
×
36
31
15
243
0
+
×
 
September 2020
week
mon
tue
wed
thu
fri
sat
sun
36
01
15
244
0
+
×
02
15
245
0
+
×
03
15
246
0
+
×
04
15
247
0
+
×
05
15
248
0
+
×
06
15
249
0
+
×
37
07
15
250
0
+
×
08
15
251
0
+
×
09
15
252
0
+
×
10
15
253
0
+
×
11
15
254
0
+
×
12
15
255
0
+
×
13
15
256
0
+
×
38
14
15
257
0
+
×
15
15
258
0
+
×
16
15
259
0
+
×
17
15
260
0
+
×
18
15
261
0
+
×
19
15
262
0
+
×
20
15
263
0
+
×
39
21
15
264
0
+
×
22
15
265
0
+
×
23
15
266
0
+
×
24
15
267
0
+
×
25
15
268
0
+
×
26
15
269
0
+
×
27
15
270
0
+
×
40
28
15
271
0
+
×
29
15
272
0
+
×
30
15
273
0
+
×
41
October 2020
week
mon
tue
wed
thu
fri
sat
sun
40
01
15
274
0
+
×
02
15
275
0
+
×
03
15
276
0
+
×
04
15
277
0
+
×
41
05
15
278
0
+
×
06
15
279
0
+
×
07
15
280
0
+
×
08
15
281
0
+
×
09
15
282
0
+
×
10
15
283
0
+
×
11
15
284
0
+
×
42
12
15
285
0
+
×
13
15
286
0
+
×
14
15
287
0
+
×
15
15
288
0
+
×
16
15
289
0
+
×
17
15
290
0
+
×
18
15
291
0
+
×
43
19
15
292
0
+
×
20
15
293
0
+
×
21
15
294
0
+
×
22
15
295
0
+
×
23
15
296
0
+
×
24
15
297
0
+
×
25
15
298
0
+
×
44
26
15
299
0
Nationalfeiertag
+
×
27
15
300
0
+
×
28
15
301
0
+
×
29
15
302
0
+
×
30
15
303
0
+
×
31
15
304
0
+
×
45
November 2020
week
mon
tue
wed
thu
fri
sat
sun
44
01
15
305
0
Allerheiligen
+
×
45
02
15
306
0
+
×
03
15
307
0
+
×
04
15
308
0
+
×
05
15
309
0
+
×
06
15
310
0
+
×
07
15
311
0
+
×
08
15
312
0
+
×
46
09
15
313
0
+
×
10
15
314
0
+
×
11
15
315
0
+
×
12
15
316
0
+
×
13
15
317
0
+
×
14
15
318
0
+
×
15
15
319
0
+
×
47
16
15
320
0
+
×
17
15
321
0
+
×
18
15
322
0
+
×
19
15
323
0
+
×
20
15
324
0
+
×
21
15
325
0
+
×
22
15
326
0
+
×
48
23
15
327
0
+
×
24
15
328
0
+
×
25
15
329
0
+
×
26
15
330
0
+
×
27
15
331
0
+
×
28
15
332
0
+
×
29
15
333
0
+
×
49
30
15
334
0
+
×
December 2020
week
mon
tue
wed
thu
fri
sat
sun
49
01
15
335
0
+
×
02
15
336
0
+
×
03
15
337
0
+
×
04
15
338
0
+
×
05
15
339
0
+
×
06
15
340
0
+
×
50
07
15
341
0
+
×
08
15
342
0
Mariä Empfängnis
+
×
09
15
343
0
+
×
10
15
344
0
+
×
11
15
345
0
+
×
12
15
346
0
+
×
13
15
347
0
+
×
51
14
15
348
0
+
×
15
15
349
0
+
×
16
15
350
0
+
×
17
15
351
0
+
×
18
15
352
0
+
×
19
15
353
0
+
×
20
15
354
0
+
×
52
21
15
355
0
+
×
22
15
356
0
+
×
23
15
357
0
+
×
24
15
358
0
+
×
25
15
359
0
Weihnachten
+
×
26
15
360
0
Stefanitag
+
×
27
15
361
0
+
×
53
28
15
362
0
+
×
29
15
363
0
+
×
30
15
364
0
+
×
31
15
365
0
+
×
01
 
January 2021
week
mon
tue
wed
thu
fri
sat
sun
53
01
15
366
0
Neujahrstag
+
×
02
15
367
0
+
×
03
15
368
0
+
×
01
02
03
04
05
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Holidays
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