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Birthdays
Holidays optimizer
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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”
Assistant: I understand all languages.
Send
..in Finland
Today, Friday, 21 February, 2025

Working day : yes
Week : 08 / 52
Day of the year : 52 / 365
Working day of the year : 36 / 253
Time (UTC +02) : 14:26

Working days

EN | FI ▼
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Japan
México
Colombia
Venezuela
Argentina
Chile
Australia
South Africa
New Zealand
Israel
Turkey
Portugal
Monaco
Greece
Luxembourg
Working days world map
Russia
Ukraine
Sweden
Denmark
Norway
USA
France
United Kingdom & Ireland
Deutschland
Poland
Österreich
Schweiz
Netherlands
Belgique
Brasil
India
China
South Korea
Canada
...
xxxx
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days:
working days:
weekend days:
custom dates:
public holidays:
Define a period
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From:
Morning
Afternoon
to:
Morning
Afternoon
Reminder
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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 ()
February 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
05
06
07
08
21
15
0
0
+
×
22
15
1
0
+
×
23
15
2
0
+
×
09
24
15
3
0
+
×
25
15
4
0
+
×
26
15
5
0
+
×
27
15
6
0
+
×
28
15
7
0
+
×
10
March 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
09
01
15
8
0
+
×
02
15
9
0
+
×
10
03
15
10
0
+
×
04
15
11
0
+
×
05
15
12
0
+
×
06
15
13
0
+
×
07
15
14
0
+
×
08
15
15
0
+
×
09
15
16
0
+
×
11
10
15
17
0
+
×
11
15
18
0
+
×
12
15
19
0
+
×
13
15
20
0
+
×
14
15
21
0
+
×
15
15
22
0
+
×
16
15
23
0
+
×
12
17
15
24
0
+
×
18
15
25
0
+
×
19
15
26
0
+
×
20
15
27
0
+
×
21
15
28
0
+
×
22
15
29
0
+
×
23
15
30
0
+
×
13
24
15
31
0
+
×
25
15
32
0
+
×
26
15
33
0
+
×
27
15
34
0
+
×
28
15
35
0
+
×
29
15
36
0
+
×
30
15
37
0
+
×
14
31
15
38
0
+
×
April 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
14
01
15
39
0
+
×
02
15
40
0
+
×
03
15
41
0
+
×
04
15
42
0
+
×
05
15
43
0
+
×
06
15
44
0
+
×
15
07
15
45
0
+
×
08
15
46
0
+
×
09
15
47
0
+
×
10
15
48
0
+
×
11
15
49
0
+
×
12
15
50
0
+
×
13
15
51
0
+
×
16
14
15
52
0
+
×
15
15
53
0
+
×
16
15
54
0
+
×
17
15
55
0
+
×
18
15
56
0
Good Friday
+
×
19
15
57
0
+
×
20
15
58
0
Easter Sunday
+
×
17
21
15
59
0
Easter Monday
+
×
22
15
60
0
+
×
23
15
61
0
+
×
24
15
62
0
+
×
25
15
63
0
+
×
26
15
64
0
+
×
27
15
65
0
+
×
18
28
15
66
0
+
×
29
15
67
0
+
×
30
15
68
0
+
×
19
May 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
18
01
15
69
0
May Day
+
×
02
15
70
0
+
×
03
15
71
0
+
×
04
15
72
0
+
×
19
05
15
73
0
+
×
06
15
74
0
+
×
07
15
75
0
+
×
08
15
76
0
+
×
09
15
77
0
+
×
10
15
78
0
+
×
11
15
79
0
+
×
20
12
15
80
0
+
×
13
15
81
0
+
×
14
15
82
0
+
×
15
15
83
0
+
×
16
15
84
0
+
×
17
15
85
0
+
×
18
15
86
0
+
×
21
19
15
87
0
+
×
20
15
88
0
+
×
21
15
89
0
+
×
22
15
90
0
+
×
23
15
91
0
+
×
24
15
92
0
+
×
25
15
93
0
+
×
22
26
15
94
0
+
×
27
15
95
0
+
×
28
15
96
0
+
×
29
15
97
0
Ascension Day
+
×
30
15
98
0
+
×
31
15
99
0
+
×
23
 
June 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
100
0
+
×
23
02
15
101
0
+
×
03
15
102
0
+
×
04
15
103
0
+
×
05
15
104
0
+
×
06
15
105
0
+
×
07
15
106
0
+
×
08
15
107
0
Whit Sunday
+
×
24
09
15
108
0
+
×
10
15
109
0
+
×
11
15
110
0
+
×
12
15
111
0
+
×
13
15
112
0
+
×
14
15
113
0
+
×
15
15
114
0
+
×
25
16
15
115
0
+
×
17
15
116
0
+
×
18
15
117
0
+
×
19
15
118
0
+
×
20
15
119
0
+
×
21
15
120
0
Midsummer Day
+
×
22
15
121
0
+
×
26
23
15
122
0
+
×
24
15
123
0
+
×
25
15
124
0
+
×
26
15
125
0
+
×
27
15
126
0
+
×
28
15
127
0
+
×
29
15
128
0
+
×
27
30
15
129
0
+
×
July 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
130
0
+
×
02
15
131
0
+
×
03
15
132
0
+
×
04
15
133
0
+
×
05
15
134
0
+
×
06
15
135
0
+
×
28
07
15
136
0
+
×
08
15
137
0
+
×
09
15
138
0
+
×
10
15
139
0
+
×
11
15
140
0
+
×
12
15
141
0
+
×
13
15
142
0
+
×
29
14
15
143
0
+
×
15
15
144
0
+
×
16
15
145
0
+
×
17
15
146
0
+
×
18
15
147
0
+
×
19
15
148
0
+
×
20
15
149
0
+
×
30
21
15
150
0
+
×
22
15
151
0
+
×
23
15
152
0
+
×
24
15
153
0
+
×
25
15
154
0
+
×
26
15
155
0
+
×
27
15
156
0
+
×
31
28
15
157
0
+
×
29
15
158
0
+
×
30
15
159
0
+
×
31
15
160
0
+
×
32
August 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
161
0
+
×
02
15
162
0
+
×
03
15
163
0
+
×
32
04
15
164
0
+
×
05
15
165
0
+
×
06
15
166
0
+
×
07
15
167
0
+
×
08
15
168
0
+
×
09
15
169
0
+
×
10
15
170
0
+
×
33
11
15
171
0
+
×
12
15
172
0
+
×
13
15
173
0
+
×
14
15
174
0
+
×
15
15
175
0
+
×
16
15
176
0
+
×
17
15
177
0
+
×
34
18
15
178
0
+
×
19
15
179
0
+
×
20
15
180
0
+
×
21
15
181
0
+
×
22
15
182
0
+
×
23
15
183
0
+
×
24
15
184
0
+
×
35
25
15
185
0
+
×
26
15
186
0
+
×
27
15
187
0
+
×
28
15
188
0
+
×
29
15
189
0
+
×
30
15
190
0
+
×
31
15
191
0
+
×
36
September 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
192
0
+
×
02
15
193
0
+
×
03
15
194
0
+
×
04
15
195
0
+
×
05
15
196
0
+
×
06
15
197
0
+
×
07
15
198
0
+
×
37
08
15
199
0
+
×
09
15
200
0
+
×
10
15
201
0
+
×
11
15
202
0
+
×
12
15
203
0
+
×
13
15
204
0
+
×
14
15
205
0
+
×
38
15
15
206
0
+
×
16
15
207
0
+
×
17
15
208
0
+
×
18
15
209
0
+
×
19
15
210
0
+
×
20
15
211
0
+
×
21
15
212
0
+
×
39
22
15
213
0
+
×
23
15
214
0
+
×
24
15
215
0
+
×
25
15
216
0
+
×
26
15
217
0
+
×
27
15
218
0
+
×
28
15
219
0
+
×
40
29
15
220
0
+
×
30
15
221
0
+
×
41
 
October 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
222
0
+
×
02
15
223
0
+
×
03
15
224
0
+
×
04
15
225
0
+
×
05
15
226
0
+
×
41
06
15
227
0
+
×
07
15
228
0
+
×
08
15
229
0
+
×
09
15
230
0
+
×
10
15
231
0
+
×
11
15
232
0
+
×
12
15
233
0
+
×
42
13
15
234
0
+
×
14
15
235
0
+
×
15
15
236
0
+
×
16
15
237
0
+
×
17
15
238
0
+
×
18
15
239
0
+
×
19
15
240
0
+
×
43
20
15
241
0
+
×
21
15
242
0
+
×
22
15
243
0
+
×
23
15
244
0
+
×
24
15
245
0
+
×
25
15
246
0
+
×
26
15
247
0
+
×
44
27
15
248
0
+
×
28
15
249
0
+
×
29
15
250
0
+
×
30
15
251
0
+
×
31
15
252
0
+
×
45
November 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
253
0
All Saints' Day
+
×
02
15
254
0
+
×
45
03
15
255
0
+
×
04
15
256
0
+
×
05
15
257
0
+
×
06
15
258
0
+
×
07
15
259
0
+
×
08
15
260
0
+
×
09
15
261
0
+
×
46
10
15
262
0
+
×
11
15
263
0
+
×
12
15
264
0
+
×
13
15
265
0
+
×
14
15
266
0
+
×
15
15
267
0
+
×
16
15
268
0
+
×
47
17
15
269
0
+
×
18
15
270
0
+
×
19
15
271
0
+
×
20
15
272
0
+
×
21
15
273
0
+
×
22
15
274
0
+
×
23
15
275
0
+
×
48
24
15
276
0
+
×
25
15
277
0
+
×
26
15
278
0
+
×
27
15
279
0
+
×
28
15
280
0
+
×
29
15
281
0
+
×
30
15
282
0
+
×
49
December 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
283
0
+
×
02
15
284
0
+
×
03
15
285
0
+
×
04
15
286
0
+
×
05
15
287
0
+
×
06
15
288
0
Independence Day
+
×
07
15
289
0
+
×
50
08
15
290
0
+
×
09
15
291
0
+
×
10
15
292
0
+
×
11
15
293
0
+
×
12
15
294
0
+
×
13
15
295
0
+
×
14
15
296
0
+
×
51
15
15
297
0
+
×
16
15
298
0
+
×
17
15
299
0
+
×
18
15
300
0
+
×
19
15
301
0
+
×
20
15
302
0
+
×
21
15
303
0
+
×
52
22
15
304
0
+
×
23
15
305
0
+
×
24
15
306
0
+
×
25
15
307
0
Christmas Day
+
×
26
15
308
0
St Stephen's Day
+
×
27
15
309
0
+
×
28
15
310
0
+
×
01
29
15
311
0
+
×
30
15
312
0
+
×
31
15
313
0
+
×
02
January 2026
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
314
0
New Year's Day
+
×
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