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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.
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..in the UK and Ireland
| England
Today, Sunday, 23 March, 2025

Working day : no (weekend day)
Week : 12 / 52
Day of the year : 82 / 365
Working day of the year : 57 / 253
Time (UTC 00) : 13:38

Working days

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