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Birthdays
Holidays optimizer
New version 2026
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 China

Warning: Undefined variable $fete in /home/tcpcatch/www/china/fond.php on line 675

Warning: Undefined variable $yes in /home/tcpcatch/www/china/fond.php on line 677

Warning: Undefined variable $ww in /home/tcpcatch/www/china/fond.php on line 678

Warning: Undefined variable $jour_de_lannee in /home/tcpcatch/www/china/fond.php on line 679

Warning: Undefined variable $jour_dans_annee in /home/tcpcatch/www/china/fond.php on line 679

Warning: Undefined variable $jour_ouvre in /home/tcpcatch/www/china/fond.php on line 680

Warning: Undefined variable $jour_ouvre_dans_annee in /home/tcpcatch/www/china/fond.php on line 680
Today, Thursday, 2026, January, 8

Working day :
Week : / 52
Day of the year : /
Working day of the year : /
Time (Asia/Shanghai) : 05:49

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Israel
Sweden
Denmark
Norway
Finland
Turkey
Portugal
Netherlands
Belgique
Greece
Working days world map
Taiwan
Hong Kong
Singapore
South Korea
Russia
USA
Ukraine
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United Kingdom & Ireland
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México
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...
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working days:
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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 
How many vacation blocks?   (    or )        
Each vacation should be at least days
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 ()
January 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
0
0
New Year's Day
+
×
02
15
1
0
+
×
03
15
2
0
+
×
04
15
3
0
+
×
05
15
4
0
+
×
06
15
5
0
+
×
02
07
15
6
0
+
×
08
15
7
0
+
×
09
15
8
0
+
×
10
15
9
0
+
×
11
15
10
0
+
×
12
15
11
0
+
×
13
15
12
0
+
×
03
14
15
13
0
+
×
15
15
14
0
+
×
16
15
15
0
+
×
17
15
16
0
+
×
18
15
17
0
+
×
19
15
18
0
+
×
20
15
19
0
+
×
04
21
15
20
0
+
×
22
15
21
0
+
×
23
15
22
0
+
×
24
15
23
0
+
×
25
15
24
0
+
×
26
15
25
0
+
×
27
15
26
0
+
×
05
28
15
27
0
+
×
29
15
28
0
+
×
30
15
29
0
+
×
31
15
30
0
+
×
06
February 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
05
01
15
31
0
+
×
02
15
32
0
+
×
03
15
33
0
+
×
06
04
15
34
0
Spring Festival (Chinese New Year)
+
×
05
15
35
0
Spring Festival (Chinese New Year)
+
×
06
15
36
0
Spring Festival (Chinese New Year)
+
×
07
15
37
0
Spring Festival (Chinese New Year)
+
×
08
15
38
0
Spring Festival (Chinese New Year)
+
×
09
15
39
0
Spring Festival (Chinese New Year)
+
×
10
15
40
0
Spring Festival (Chinese New Year)
+
×
07
11
15
41
0
+
×
12
15
42
0
+
×
13
15
43
0
+
×
14
15
44
0
+
×
15
15
45
0
+
×
16
15
46
0
+
×
17
15
47
0
+
×
08
18
15
48
0
+
×
19
15
49
0
+
×
20
15
50
0
+
×
21
15
51
0
+
×
22
15
52
0
+
×
23
15
53
0
+
×
24
15
54
0
+
×
09
25
15
55
0
+
×
26
15
56
0
+
×
27
15
57
0
+
×
28
15
58
0
+
×
10
March 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
09
01
15
59
0
+
×
02
15
60
0
+
×
03
15
61
0
+
×
10
04
15
62
0
+
×
05
15
63
0
+
×
06
15
64
0
+
×
07
15
65
0
+
×
08
15
66
0
+
×
09
15
67
0
+
×
10
15
68
0
+
×
11
11
15
69
0
+
×
12
15
70
0
+
×
13
15
71
0
+
×
14
15
72
0
+
×
15
15
73
0
+
×
16
15
74
0
+
×
17
15
75
0
+
×
12
18
15
76
0
+
×
19
15
77
0
+
×
20
15
78
0
+
×
21
15
79
0
+
×
22
15
80
0
+
×
23
15
81
0
+
×
24
15
82
0
+
×
13
25
15
83
0
+
×
26
15
84
0
+
×
27
15
85
0
+
×
28
15
86
0
+
×
29
15
87
0
+
×
30
15
88
0
+
×
31
15
89
0
+
×
14
April 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
14
01
15
90
0
+
×
02
15
91
0
+
×
03
15
92
0
+
×
04
15
93
0
+
×
05
15
94
0
Qingming Festival (Tomb Sweeping Day)
+
×
06
15
95
0
Qingming Festival (Tomb Sweeping Day)
+
×
07
15
96
0
Qingming Festival (Tomb Sweeping Day)
+
×
15
08
15
97
0
+
×
09
15
98
0
+
×
10
15
99
0
+
×
11
15
100
0
+
×
12
15
101
0
+
×
13
15
102
0
+
×
14
15
103
0
+
×
16
15
15
104
0
+
×
16
15
105
0
+
×
17
15
106
0
+
×
18
15
107
0
+
×
19
15
108
0
+
×
20
15
109
0
+
×
21
15
110
0
+
×
17
22
15
111
0
+
×
23
15
112
0
+
×
24
15
113
0
+
×
25
15
114
0
+
×
26
15
115
0
+
×
27
15
116
0
+
×
28
15
117
0
+
×
18
29
15
118
0
+
×
30
15
119
0
+
×
19
 
May 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
18
01
15
120
0
Labor Day
+
×
02
15
121
0
Labor Day
+
×
03
15
122
0
Labor Day
+
×
04
15
123
0
Labor Day
+
×
05
15
124
0
+
×
19
06
15
125
0
+
×
07
15
126
0
+
×
08
15
127
0
+
×
09
15
128
0
+
×
10
15
129
0
+
×
11
15
130
0
+
×
12
15
131
0
+
×
20
13
15
132
0
+
×
14
15
133
0
+
×
15
15
134
0
+
×
16
15
135
0
+
×
17
15
136
0
+
×
18
15
137
0
+
×
19
15
138
0
+
×
21
20
15
139
0
+
×
21
15
140
0
+
×
22
15
141
0
+
×
23
15
142
0
+
×
24
15
143
0
+
×
25
15
144
0
+
×
26
15
145
0
+
×
22
27
15
146
0
+
×
28
15
147
0
+
×
29
15
148
0
+
×
30
15
149
0
+
×
31
15
150
0
+
×
23
June 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
151
0
+
×
02
15
152
0
+
×
23
03
15
153
0
+
×
04
15
154
0
+
×
05
15
155
0
+
×
06
15
156
0
+
×
07
15
157
0
Dragon Boat Festival
+
×
08
15
158
0
Dragon Boat Festival
+
×
09
15
159
0
Dragon Boat Festival
+
×
24
10
15
160
0
+
×
11
15
161
0
+
×
12
15
162
0
+
×
13
15
163
0
+
×
14
15
164
0
+
×
15
15
165
0
+
×
16
15
166
0
+
×
25
17
15
167
0
+
×
18
15
168
0
+
×
19
15
169
0
+
×
20
15
170
0
+
×
21
15
171
0
+
×
22
15
172
0
+
×
23
15
173
0
+
×
26
24
15
174
0
+
×
25
15
175
0
+
×
26
15
176
0
+
×
27
15
177
0
+
×
28
15
178
0
+
×
29
15
179
0
+
×
30
15
180
0
+
×
27
July 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
181
0
+
×
02
15
182
0
+
×
03
15
183
0
+
×
04
15
184
0
+
×
05
15
185
0
+
×
06
15
186
0
+
×
07
15
187
0
+
×
28
08
15
188
0
+
×
09
15
189
0
+
×
10
15
190
0
+
×
11
15
191
0
+
×
12
15
192
0
+
×
13
15
193
0
+
×
14
15
194
0
+
×
29
15
15
195
0
+
×
16
15
196
0
+
×
17
15
197
0
+
×
18
15
198
0
+
×
19
15
199
0
+
×
20
15
200
0
+
×
21
15
201
0
+
×
30
22
15
202
0
+
×
23
15
203
0
+
×
24
15
204
0
+
×
25
15
205
0
+
×
26
15
206
0
+
×
27
15
207
0
+
×
28
15
208
0
+
×
31
29
15
209
0
+
×
30
15
210
0
+
×
31
15
211
0
+
×
32
August 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
212
0
+
×
02
15
213
0
+
×
03
15
214
0
+
×
04
15
215
0
+
×
32
05
15
216
0
+
×
06
15
217
0
+
×
07
15
218
0
+
×
08
15
219
0
+
×
09
15
220
0
+
×
10
15
221
0
+
×
11
15
222
0
+
×
33
12
15
223
0
+
×
13
15
224
0
+
×
14
15
225
0
+
×
15
15
226
0
+
×
16
15
227
0
+
×
17
15
228
0
+
×
18
15
229
0
+
×
34
19
15
230
0
+
×
20
15
231
0
+
×
21
15
232
0
+
×
22
15
233
0
+
×
23
15
234
0
+
×
24
15
235
0
+
×
25
15
236
0
+
×
35
26
15
237
0
+
×
27
15
238
0
+
×
28
15
239
0
+
×
29
15
240
0
+
×
30
15
241
0
+
×
31
15
242
0
+
×
36
 
September 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
35
01
15
243
0
+
×
36
02
15
244
0
+
×
03
15
245
0
+
×
04
15
246
0
+
×
05
15
247
0
+
×
06
15
248
0
+
×
07
15
249
0
+
×
08
15
250
0
+
×
37
09
15
251
0
+
×
10
15
252
0
+
×
11
15
253
0
+
×
12
15
254
0
+
×
13
15
255
0
Mid-Autumn Festival
+
×
14
15
256
0
Mid-Autumn Festival
+
×
15
15
257
0
Mid-Autumn Festival
+
×
38
16
15
258
0
+
×
17
15
259
0
+
×
18
15
260
0
+
×
19
15
261
0
+
×
20
15
262
0
+
×
21
15
263
0
+
×
22
15
264
0
+
×
39
23
15
265
0
+
×
24
15
266
0
+
×
25
15
267
0
+
×
26
15
268
0
+
×
27
15
269
0
+
×
28
15
270
0
+
×
29
15
271
0
+
×
40
30
15
272
0
+
×
October 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
273
0
National Day
+
×
02
15
274
0
National Day
+
×
03
15
275
0
National Day
+
×
04
15
276
0
National Day
+
×
05
15
277
0
National Day
+
×
06
15
278
0
National Day
+
×
41
07
15
279
0
National Day
+
×
08
15
280
0
+
×
09
15
281
0
+
×
10
15
282
0
+
×
11
15
283
0
+
×
12
15
284
0
+
×
13
15
285
0
+
×
42
14
15
286
0
+
×
15
15
287
0
+
×
16
15
288
0
+
×
17
15
289
0
+
×
18
15
290
0
+
×
19
15
291
0
+
×
20
15
292
0
+
×
43
21
15
293
0
+
×
22
15
294
0
+
×
23
15
295
0
+
×
24
15
296
0
+
×
25
15
297
0
+
×
26
15
298
0
+
×
27
15
299
0
+
×
44
28
15
300
0
+
×
29
15
301
0
+
×
30
15
302
0
+
×
31
15
303
0
+
×
45
November 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
304
0
+
×
02
15
305
0
+
×
03
15
306
0
+
×
45
04
15
307
0
+
×
05
15
308
0
+
×
06
15
309
0
+
×
07
15
310
0
+
×
08
15
311
0
+
×
09
15
312
0
+
×
10
15
313
0
+
×
46
11
15
314
0
+
×
12
15
315
0
+
×
13
15
316
0
+
×
14
15
317
0
+
×
15
15
318
0
+
×
16
15
319
0
+
×
17
15
320
0
+
×
47
18
15
321
0
+
×
19
15
322
0
+
×
20
15
323
0
+
×
21
15
324
0
+
×
22
15
325
0
+
×
23
15
326
0
+
×
24
15
327
0
+
×
48
25
15
328
0
+
×
26
15
329
0
+
×
27
15
330
0
+
×
28
15
331
0
+
×
29
15
332
0
+
×
30
15
333
0
+
×
49
December 2019
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
48
01
15
334
0
+
×
49
02
15
335
0
+
×
03
15
336
0
+
×
04
15
337
0
+
×
05
15
338
0
+
×
06
15
339
0
+
×
07
15
340
0
+
×
08
15
341
0
+
×
50
09
15
342
0
+
×
10
15
343
0
+
×
11
15
344
0
+
×
12
15
345
0
+
×
13
15
346
0
+
×
14
15
347
0
+
×
15
15
348
0
+
×
51
16
15
349
0
+
×
17
15
350
0
+
×
18
15
351
0
+
×
19
15
352
0
+
×
20
15
353
0
+
×
21
15
354
0
+
×
22
15
355
0
+
×
52
23
15
356
0
+
×
24
15
357
0
+
×
25
15
358
0
+
×
26
15
359
0
+
×
27
15
360
0
+
×
28
15
361
0
+
×
29
15
362
0
+
×
01
30
15
363
0
+
×
31
15
364
0
New Year's Day
+
×
 
January 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
01
01
15
365
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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:
I have to be at work
I know I want to be on vacation
?
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