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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.
Send
..in China
Today, Friday, 2025, July, 4

Working day : yes
Week : 27 / 52
Day of the year : 185 / 365
Working day of the year : 124 / 248
Time (UTC ++8) : 02:51

Working days

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España
Argentina
Chile
Schweiz
Australia
South Africa
New Zealand
Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Netherlands
Belgique
Greece
Working days world map
Taiwan
Hong Kong
Singapore
South Korea
Russia
USA
Ukraine
Deutschland
Poland
Österreich
United Kingdom & Ireland
Brasil
Canada
France
Japan
México
Colombia
Venezuela
Italia
...
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
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Reminder
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Contact
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 ()
July 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
03
15
0
0
+
×
04
15
1
0
+
×
05
15
2
0
+
×
06
15
3
0
+
×
28
07
15
4
0
+
×
08
15
5
0
+
×
09
15
6
0
+
×
10
15
7
0
+
×
11
15
8
0
+
×
12
15
9
0
+
×
13
15
10
0
+
×
29
14
15
11
0
+
×
15
15
12
0
+
×
16
15
13
0
+
×
17
15
14
0
+
×
18
15
15
0
+
×
19
15
16
0
+
×
20
15
17
0
+
×
30
21
15
18
0
+
×
22
15
19
0
+
×
23
15
20
0
+
×
24
15
21
0
+
×
25
15
22
0
+
×
26
15
23
0
+
×
27
15
24
0
+
×
31
28
15
25
0
+
×
29
15
26
0
+
×
30
15
27
0
+
×
31
15
28
0
+
×
32
August 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
29
0
+
×
02
15
30
0
+
×
03
15
31
0
+
×
32
04
15
32
0
+
×
05
15
33
0
+
×
06
15
34
0
+
×
07
15
35
0
+
×
08
15
36
0
+
×
09
15
37
0
+
×
10
15
38
0
+
×
33
11
15
39
0
+
×
12
15
40
0
+
×
13
15
41
0
+
×
14
15
42
0
+
×
15
15
43
0
+
×
16
15
44
0
+
×
17
15
45
0
+
×
34
18
15
46
0
+
×
19
15
47
0
+
×
20
15
48
0
+
×
21
15
49
0
+
×
22
15
50
0
+
×
23
15
51
0
+
×
24
15
52
0
+
×
35
25
15
53
0
+
×
26
15
54
0
+
×
27
15
55
0
+
×
28
15
56
0
+
×
29
15
57
0
+
×
30
15
58
0
+
×
31
15
59
0
+
×
36
September 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
60
0
+
×
02
15
61
0
+
×
03
15
62
0
+
×
04
15
63
0
+
×
05
15
64
0
+
×
06
15
65
0
+
×
07
15
66
0
+
×
37
08
15
67
0
+
×
09
15
68
0
+
×
10
15
69
0
+
×
11
15
70
0
+
×
12
15
71
0
+
×
13
15
72
0
+
×
14
15
73
0
+
×
38
15
15
74
0
+
×
16
15
75
0
+
×
17
15
76
0
+
×
18
15
77
0
+
×
19
15
78
0
+
×
20
15
79
0
+
×
21
15
80
0
+
×
39
22
15
81
0
+
×
23
15
82
0
+
×
24
15
83
0
+
×
25
15
84
0
+
×
26
15
85
0
+
×
27
15
86
0
+
×
28
15
87
0
+
×
40
29
15
88
0
+
×
30
15
89
0
+
×
41
October 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
90
0
Mid-Autumn Festival
+
×
02
15
91
0
Mid-Autumn Festival
+
×
03
15
92
0
Mid-Autumn Festival
+
×
04
15
93
0
Mid-Autumn Festival
+
×
05
15
94
0
Mid-Autumn Festival
+
×
41
06
15
95
0
Mid-Autumn Festival
+
×
07
15
96
0
Mid-Autumn Festival
+
×
08
15
97
0
Mid-Autumn Festival
+
×
09
15
98
0
+
×
10
15
99
0
+
×
11
15
100
0
+
×
12
15
101
0
+
×
42
13
15
102
0
+
×
14
15
103
0
+
×
15
15
104
0
+
×
16
15
105
0
+
×
17
15
106
0
+
×
18
15
107
0
+
×
19
15
108
0
+
×
43
20
15
109
0
+
×
21
15
110
0
+
×
22
15
111
0
+
×
23
15
112
0
+
×
24
15
113
0
+
×
25
15
114
0
+
×
26
15
115
0
+
×
44
27
15
116
0
+
×
28
15
117
0
+
×
29
15
118
0
+
×
30
15
119
0
+
×
31
15
120
0
+
×
45
 
November 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
121
0
+
×
02
15
122
0
+
×
45
03
15
123
0
+
×
04
15
124
0
+
×
05
15
125
0
+
×
06
15
126
0
+
×
07
15
127
0
+
×
08
15
128
0
+
×
09
15
129
0
+
×
46
10
15
130
0
+
×
11
15
131
0
+
×
12
15
132
0
+
×
13
15
133
0
+
×
14
15
134
0
+
×
15
15
135
0
+
×
16
15
136
0
+
×
47
17
15
137
0
+
×
18
15
138
0
+
×
19
15
139
0
+
×
20
15
140
0
+
×
21
15
141
0
+
×
22
15
142
0
+
×
23
15
143
0
+
×
48
24
15
144
0
+
×
25
15
145
0
+
×
26
15
146
0
+
×
27
15
147
0
+
×
28
15
148
0
+
×
29
15
149
0
+
×
30
15
150
0
+
×
49
December 2025
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
151
0
+
×
02
15
152
0
+
×
03
15
153
0
+
×
04
15
154
0
+
×
05
15
155
0
+
×
06
15
156
0
+
×
07
15
157
0
+
×
50
08
15
158
0
+
×
09
15
159
0
+
×
10
15
160
0
+
×
11
15
161
0
+
×
12
15
162
0
+
×
13
15
163
0
+
×
14
15
164
0
+
×
51
15
15
165
0
+
×
16
15
166
0
+
×
17
15
167
0
+
×
18
15
168
0
+
×
19
15
169
0
+
×
20
15
170
0
+
×
21
15
171
0
+
×
52
22
15
172
0
+
×
23
15
173
0
+
×
24
15
174
0
+
×
25
15
175
0
+
×
26
15
176
0
+
×
27
15
177
0
+
×
28
15
178
0
+
×
01
29
15
179
0
+
×
30
15
180
0
+
×
31
15
181
0
+
×
02
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