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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”
Assistant: I understand all languages.
Send
..in Argentina
Today, Friday, 21 February, 2025

Working day : yes
Week : 08 / 52
Day of the year : 52 / 365
Working day of the year : 37 / 241
Time (UTC -03) : 22:59

Working days

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