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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
Make
every
day
count
..in the USA
| Federal holidays
Today, Thursday, July 10, 2025

Working day : yes
Week : 28 / 52
Day of the year : 191 / 365
Working day of the year : 131 / 250
Time (UTC -4) : 03:13 pm

Working days

EN | ES ▼
dss
Australia
South Africa
New Zealand
Russia
Ukraine
Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Netherlands
Belgique
Monaco
Greece
Luxembourg
Working days world map
Canada
United Kingdom & Ireland
South Korea
China
México
Colombia
Venezuela
Brasil
Deutschland
Poland
Österreich
India
France
Italia
Japan
España
Argentina
Chile
Schweiz
...
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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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
Sun
Mon
Tue
Wed
Thu
Fri
Sat
27
28
10
15
0
0
+
×
11
15
1
0
+
×
12
15
2
0
+
×
29
13
15
3
0
+
×
14
15
4
0
+
×
15
15
5
0
+
×
16
15
6
0
+
×
17
15
7
0
+
×
18
15
8
0
+
×
19
15
9
0
+
×
30
20
15
10
0
+
×
21
15
11
0
+
×
22
15
12
0
+
×
23
15
13
0
+
×
24
15
14
0
+
×
25
15
15
0
+
×
26
15
16
0
+
×
31
27
15
17
0
+
×
28
15
18
0
+
×
29
15
19
0
+
×
30
15
20
0
+
×
31
15
21
0
+
×
32
August 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
31
01
15
22
0
+
×
02
15
23
0
+
×
32
03
15
24
0
+
×
04
15
25
0
+
×
05
15
26
0
+
×
06
15
27
0
+
×
07
15
28
0
+
×
08
15
29
0
+
×
09
15
30
0
+
×
33
10
15
31
0
+
×
11
15
32
0
+
×
12
15
33
0
+
×
13
15
34
0
+
×
14
15
35
0
+
×
15
15
36
0
+
×
16
15
37
0
+
×
34
17
15
38
0
+
×
18
15
39
0
+
×
19
15
40
0
+
×
20
15
41
0
+
×
21
15
42
0
+
×
22
15
43
0
+
×
23
15
44
0
+
×
35
24
15
45
0
+
×
25
15
46
0
+
×
26
15
47
0
+
×
27
15
48
0
+
×
28
15
49
0
+
×
29
15
50
0
+
×
30
15
51
0
+
×
36
31
15
52
0
+
×
September 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
36
01
15
53
0
Labor Day
+
×
02
15
54
0
+
×
03
15
55
0
+
×
04
15
56
0
+
×
05
15
57
0
+
×
06
15
58
0
+
×
37
07
15
59
0
+
×
08
15
60
0
+
×
09
15
61
0
+
×
10
15
62
0
+
×
11
15
63
0
+
×
12
15
64
0
+
×
13
15
65
0
+
×
38
14
15
66
0
+
×
15
15
67
0
+
×
16
15
68
0
+
×
17
15
69
0
+
×
18
15
70
0
+
×
19
15
71
0
+
×
20
15
72
0
+
×
39
21
15
73
0
+
×
22
15
74
0
+
×
23
15
75
0
+
×
24
15
76
0
+
×
25
15
77
0
+
×
26
15
78
0
+
×
27
15
79
0
+
×
40
28
15
80
0
+
×
29
15
81
0
+
×
30
15
82
0
+
×
41
October 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
40
01
15
83
0
+
×
02
15
84
0
+
×
03
15
85
0
+
×
04
15
86
0
+
×
41
05
15
87
0
+
×
06
15
88
0
+
×
07
15
89
0
+
×
08
15
90
0
+
×
09
15
91
0
+
×
10
15
92
0
+
×
11
15
93
0
+
×
42
12
15
94
0
+
×
13
15
95
0
Columbus Day
+
×
14
15
96
0
+
×
15
15
97
0
+
×
16
15
98
0
+
×
17
15
99
0
+
×
18
15
100
0
+
×
43
19
15
101
0
+
×
20
15
102
0
+
×
21
15
103
0
+
×
22
15
104
0
+
×
23
15
105
0
+
×
24
15
106
0
+
×
25
15
107
0
+
×
44
26
15
108
0
+
×
27
15
109
0
+
×
28
15
110
0
+
×
29
15
111
0
+
×
30
15
112
0
+
×
31
15
113
0
+
×
45
 
November 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
44
01
15
114
0
+
×
45
02
15
115
0
+
×
03
15
116
0
+
×
04
15
117
0
+
×
05
15
118
0
+
×
06
15
119
0
+
×
07
15
120
0
+
×
08
15
121
0
+
×
46
09
15
122
0
+
×
10
15
123
0
+
×
11
15
124
0
Veterans Day
+
×
12
15
125
0
+
×
13
15
126
0
+
×
14
15
127
0
+
×
15
15
128
0
+
×
47
16
15
129
0
+
×
17
15
130
0
+
×
18
15
131
0
+
×
19
15
132
0
+
×
20
15
133
0
+
×
21
15
134
0
+
×
22
15
135
0
+
×
48
23
15
136
0
+
×
24
15
137
0
+
×
25
15
138
0
+
×
26
15
139
0
+
×
27
15
140
0
Thanksgiving
+
×
28
15
141
0
+
×
29
15
142
0
+
×
49
30
15
143
0
+
×
December 2025
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
49
01
15
144
0
+
×
02
15
145
0
+
×
03
15
146
0
+
×
04
15
147
0
+
×
05
15
148
0
+
×
06
15
149
0
+
×
50
07
15
150
0
+
×
08
15
151
0
+
×
09
15
152
0
+
×
10
15
153
0
+
×
11
15
154
0
+
×
12
15
155
0
+
×
13
15
156
0
+
×
51
14
15
157
0
+
×
15
15
158
0
+
×
16
15
159
0
+
×
17
15
160
0
+
×
18
15
161
0
+
×
19
15
162
0
+
×
20
15
163
0
+
×
52
21
15
164
0
+
×
22
15
165
0
+
×
23
15
166
0
+
×
24
15
167
0
+
×
25
15
168
0
Christmas
+
×
26
15
169
0
+
×
27
15
170
0
+
×
01
28
15
171
0
+
×
29
15
172
0
+
×
30
15
173
0
+
×
31
15
174
0
+
×
02
January 2026
week
Sun
Mon
Tue
Wed
Thu
Fri
Sat
01
01
15
175
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