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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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..in Austria
| Wien
Today, Saturday, 19 April, 2025

Working day : no (weekend day)
Week : 16 / 52
Day of the year : 109 / 365
Working day of the year : 76 / 250
Time (UTC +01) : 10:42

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:
weekend days:
custom dates:
public holidays:
school holidays:
Define a period
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Afternoon
to:
Morning
Afternoon
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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 ()
April 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
14
15
16
19
15
0
0
+
×
20
15
1
0
+
×
17
21
15
2
0
Ostermontag
+
×
22
15
3
0
+
×
23
15
4
0
+
×
24
15
5
0
+
×
25
15
6
0
+
×
26
15
7
0
+
×
27
15
8
0
+
×
18
28
15
9
0
+
×
29
15
10
0
+
×
30
15
11
0
+
×
19
May 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
18
01
15
12
0
Staatsfeiertag
+
×
02
15
13
0
+
×
03
15
14
0
+
×
04
15
15
0
+
×
19
05
15
16
0
+
×
06
15
17
0
+
×
07
15
18
0
+
×
08
15
19
0
+
×
09
15
20
0
+
×
10
15
21
0
+
×
11
15
22
0
+
×
20
12
15
23
0
+
×
13
15
24
0
+
×
14
15
25
0
+
×
15
15
26
0
+
×
16
15
27
0
+
×
17
15
28
0
+
×
18
15
29
0
+
×
21
19
15
30
0
+
×
20
15
31
0
+
×
21
15
32
0
+
×
22
15
33
0
+
×
23
15
34
0
+
×
24
15
35
0
+
×
25
15
36
0
+
×
22
26
15
37
0
+
×
27
15
38
0
+
×
28
15
39
0
+
×
29
15
40
0
Christi Himmelfahrt
+
×
30
15
41
0
+
×
31
15
42
0
+
×
23
June 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
43
0
+
×
23
02
15
44
0
+
×
03
15
45
0
+
×
04
15
46
0
+
×
05
15
47
0
+
×
06
15
48
0
+
×
07
15
49
0
+
×
08
15
50
0
+
×
24
09
15
51
0
Pfingstmontag
+
×
10
15
52
0
+
×
11
15
53
0
+
×
12
15
54
0
+
×
13
15
55
0
+
×
14
15
56
0
+
×
15
15
57
0
+
×
25
16
15
58
0
+
×
17
15
59
0
+
×
18
15
60
0
+
×
19
15
61
0
Fronleichnam
+
×
20
15
62
0
+
×
21
15
63
0
+
×
22
15
64
0
+
×
26
23
15
65
0
+
×
24
15
66
0
+
×
25
15
67
0
+
×
26
15
68
0
+
×
27
15
69
0
+
×
28
15
70
0
+
×
29
15
71
0
+
×
27
30
15
72
0
+
×
July 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
73
0
+
×
02
15
74
0
+
×
03
15
75
0
+
×
04
15
76
0
+
×
05
15
77
0
+
×
06
15
78
0
+
×
28
07
15
79
0
+
×
08
15
80
0
+
×
09
15
81
0
+
×
10
15
82
0
+
×
11
15
83
0
+
×
12
15
84
0
+
×
13
15
85
0
+
×
29
14
15
86
0
+
×
15
15
87
0
+
×
16
15
88
0
+
×
17
15
89
0
+
×
18
15
90
0
+
×
19
15
91
0
+
×
20
15
92
0
+
×
30
21
15
93
0
+
×
22
15
94
0
+
×
23
15
95
0
+
×
24
15
96
0
+
×
25
15
97
0
+
×
26
15
98
0
+
×
27
15
99
0
+
×
31
28
15
100
0
+
×
29
15
101
0
+
×
30
15
102
0
+
×
31
15
103
0
+
×
32
 
August 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
104
0
+
×
02
15
105
0
+
×
03
15
106
0
+
×
32
04
15
107
0
+
×
05
15
108
0
+
×
06
15
109
0
+
×
07
15
110
0
+
×
08
15
111
0
+
×
09
15
112
0
+
×
10
15
113
0
+
×
33
11
15
114
0
+
×
12
15
115
0
+
×
13
15
116
0
+
×
14
15
117
0
+
×
15
15
118
0
Mariä Himmelfahrt
+
×
16
15
119
0
+
×
17
15
120
0
+
×
34
18
15
121
0
+
×
19
15
122
0
+
×
20
15
123
0
+
×
21
15
124
0
+
×
22
15
125
0
+
×
23
15
126
0
+
×
24
15
127
0
+
×
35
25
15
128
0
+
×
26
15
129
0
+
×
27
15
130
0
+
×
28
15
131
0
+
×
29
15
132
0
+
×
30
15
133
0
+
×
31
15
134
0
+
×
36
September 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
135
0
+
×
02
15
136
0
+
×
03
15
137
0
+
×
04
15
138
0
+
×
05
15
139
0
+
×
06
15
140
0
+
×
07
15
141
0
+
×
37
08
15
142
0
+
×
09
15
143
0
+
×
10
15
144
0
+
×
11
15
145
0
+
×
12
15
146
0
+
×
13
15
147
0
+
×
14
15
148
0
+
×
38
15
15
149
0
+
×
16
15
150
0
+
×
17
15
151
0
+
×
18
15
152
0
+
×
19
15
153
0
+
×
20
15
154
0
+
×
21
15
155
0
+
×
39
22
15
156
0
+
×
23
15
157
0
+
×
24
15
158
0
+
×
25
15
159
0
+
×
26
15
160
0
+
×
27
15
161
0
+
×
28
15
162
0
+
×
40
29
15
163
0
+
×
30
15
164
0
+
×
41
October 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
165
0
+
×
02
15
166
0
+
×
03
15
167
0
+
×
04
15
168
0
+
×
05
15
169
0
+
×
41
06
15
170
0
+
×
07
15
171
0
+
×
08
15
172
0
+
×
09
15
173
0
+
×
10
15
174
0
+
×
11
15
175
0
+
×
12
15
176
0
+
×
42
13
15
177
0
+
×
14
15
178
0
+
×
15
15
179
0
+
×
16
15
180
0
+
×
17
15
181
0
+
×
18
15
182
0
+
×
19
15
183
0
+
×
43
20
15
184
0
+
×
21
15
185
0
+
×
22
15
186
0
+
×
23
15
187
0
+
×
24
15
188
0
+
×
25
15
189
0
+
×
26
15
190
0
Nationalfeiertag
+
×
44
27
15
191
0
+
×
28
15
192
0
+
×
29
15
193
0
+
×
30
15
194
0
+
×
31
15
195
0
+
×
45
November 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
196
0
Allerheiligen
+
×
02
15
197
0
+
×
45
03
15
198
0
+
×
04
15
199
0
+
×
05
15
200
0
+
×
06
15
201
0
+
×
07
15
202
0
+
×
08
15
203
0
+
×
09
15
204
0
+
×
46
10
15
205
0
+
×
11
15
206
0
+
×
12
15
207
0
+
×
13
15
208
0
+
×
14
15
209
0
+
×
15
15
210
0
St. Leopold
+
×
16
15
211
0
+
×
47
17
15
212
0
+
×
18
15
213
0
+
×
19
15
214
0
+
×
20
15
215
0
+
×
21
15
216
0
+
×
22
15
217
0
+
×
23
15
218
0
+
×
48
24
15
219
0
+
×
25
15
220
0
+
×
26
15
221
0
+
×
27
15
222
0
+
×
28
15
223
0
+
×
29
15
224
0
+
×
30
15
225
0
+
×
49
 
December 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
226
0
+
×
02
15
227
0
+
×
03
15
228
0
+
×
04
15
229
0
+
×
05
15
230
0
+
×
06
15
231
0
+
×
07
15
232
0
+
×
50
08
15
233
0
Mariä Empfängnis
+
×
09
15
234
0
+
×
10
15
235
0
+
×
11
15
236
0
+
×
12
15
237
0
+
×
13
15
238
0
+
×
14
15
239
0
+
×
51
15
15
240
0
+
×
16
15
241
0
+
×
17
15
242
0
+
×
18
15
243
0
+
×
19
15
244
0
+
×
20
15
245
0
+
×
21
15
246
0
+
×
52
22
15
247
0
+
×
23
15
248
0
+
×
24
15
249
0
+
×
25
15
250
0
Weihnachten
+
×
26
15
251
0
Stefanitag
+
×
27
15
252
0
+
×
28
15
253
0
+
×
01
29
15
254
0
+
×
30
15
255
0
+
×
31
15
256
0
+
×
02
January 2026
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
257
0
Neujahrstag
+
×
02
03
04
05
06
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