×
From to
:
I have to be at work
I know I want to be on vacation
?
I let the optimizer decide
Weekend days
Working days
Public holidays
EN | FR 
Language:



Español
Français
Português
Italiano
Deutsch
..in Switzerland
|  Freiburg (reformiert)
SAT-SUN
Calendar:
School holidays :
Weekend days:
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
SAVE
The Holidays        ptimizer
It tells you when to take your days off to maximize the length of your vacation
 ▶
Optimize it
I would like to take
days off
from  
1 2 3 4 5 6 7 9 10 11 12
 to 
1 2 3 4 5 6 7 9 10 11 12
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 ()
June 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
23
24
25
26
27
30
15
0
0
+
×
28
July 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
01
15
1
0
+
×
02
15
2
0
+
×
03
15
3
0
+
×
04
15
4
0
+
×
05
15
5
0
+
×
28
06
15
6
0
+
×
07
15
7
0
+
×
08
15
8
0
+
×
09
15
9
0
+
×
10
15
10
0
+
×
11
15
11
0
+
×
12
15
12
0
+
×
29
13
15
13
0
+
×
14
15
14
0
+
×
15
15
15
0
+
×
16
15
16
0
+
×
17
15
17
0
+
×
18
15
18
0
+
×
19
15
19
0
+
×
30
20
15
20
0
+
×
21
15
21
0
+
×
22
15
22
0
+
×
23
15
23
0
+
×
24
15
24
0
+
×
25
15
25
0
+
×
26
15
26
0
+
×
31
27
15
27
0
+
×
28
15
28
0
+
×
29
15
29
0
+
×
30
15
30
0
+
×
31
15
31
0
+
×
32
August 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
31
01
15
32
0
Swiss National Day
+
×
02
15
33
0
+
×
32
03
15
34
0
+
×
04
15
35
0
+
×
05
15
36
0
+
×
06
15
37
0
+
×
07
15
38
0
+
×
08
15
39
0
+
×
09
15
40
0
+
×
33
10
15
41
0
+
×
11
15
42
0
+
×
12
15
43
0
+
×
13
15
44
0
+
×
14
15
45
0
+
×
15
15
46
0
+
×
16
15
47
0
+
×
34
17
15
48
0
+
×
18
15
49
0
+
×
19
15
50
0
+
×
20
15
51
0
+
×
21
15
52
0
+
×
22
15
53
0
+
×
23
15
54
0
+
×
35
24
15
55
0
+
×
25
15
56
0
+
×
26
15
57
0
+
×
27
15
58
0
+
×
28
15
59
0
+
×
29
15
60
0
+
×
30
15
61
0
+
×
36
31
15
62
0
+
×
September 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
36
01
15
63
0
+
×
02
15
64
0
+
×
03
15
65
0
+
×
04
15
66
0
+
×
05
15
67
0
+
×
06
15
68
0
+
×
37
07
15
69
0
+
×
08
15
70
0
+
×
09
15
71
0
+
×
10
15
72
0
+
×
11
15
73
0
+
×
12
15
74
0
+
×
13
15
75
0
+
×
38
14
15
76
0
+
×
15
15
77
0
+
×
16
15
78
0
+
×
17
15
79
0
+
×
18
15
80
0
+
×
19
15
81
0
+
×
20
15
82
0
+
×
39
21
15
83
0
+
×
22
15
84
0
+
×
23
15
85
0
+
×
24
15
86
0
+
×
25
15
87
0
+
×
26
15
88
0
+
×
27
15
89
0
+
×
40
28
15
90
0
+
×
29
15
91
0
+
×
30
15
92
0
+
×
41
 
October 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
40
01
15
93
0
+
×
02
15
94
0
+
×
03
15
95
0
+
×
04
15
96
0
+
×
41
05
15
97
0
+
×
06
15
98
0
+
×
07
15
99
0
+
×
08
15
100
0
+
×
09
15
101
0
+
×
10
15
102
0
+
×
11
15
103
0
+
×
42
12
15
104
0
+
×
13
15
105
0
+
×
14
15
106
0
+
×
15
15
107
0
+
×
16
15
108
0
+
×
17
15
109
0
+
×
18
15
110
0
+
×
43
19
15
111
0
+
×
20
15
112
0
+
×
21
15
113
0
+
×
22
15
114
0
+
×
23
15
115
0
+
×
24
15
116
0
+
×
25
15
117
0
+
×
44
26
15
118
0
+
×
27
15
119
0
+
×
28
15
120
0
+
×
29
15
121
0
+
×
30
15
122
0
+
×
31
15
123
0
+
×
45
November 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44
01
15
124
0
+
×
45
02
15
125
0
+
×
03
15
126
0
+
×
04
15
127
0
+
×
05
15
128
0
+
×
06
15
129
0
+
×
07
15
130
0
+
×
08
15
131
0
+
×
46
09
15
132
0
+
×
10
15
133
0
+
×
11
15
134
0
+
×
12
15
135
0
+
×
13
15
136
0
+
×
14
15
137
0
+
×
15
15
138
0
+
×
47
16
15
139
0
+
×
17
15
140
0
+
×
18
15
141
0
+
×
19
15
142
0
+
×
20
15
143
0
+
×
21
15
144
0
+
×
22
15
145
0
+
×
48
23
15
146
0
+
×
24
15
147
0
+
×
25
15
148
0
+
×
26
15
149
0
+
×
27
15
150
0
+
×
28
15
151
0
+
×
29
15
152
0
+
×
49
30
15
153
0
+
×
December 2020
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
49
01
15
154
0
+
×
02
15
155
0
+
×
03
15
156
0
+
×
04
15
157
0
+
×
05
15
158
0
+
×
06
15
159
0
+
×
50
07
15
160
0
+
×
08
15
161
0
+
×
09
15
162
0
+
×
10
15
163
0
+
×
11
15
164
0
+
×
12
15
165
0
+
×
13
15
166
0
+
×
51
14
15
167
0
+
×
15
15
168
0
+
×
16
15
169
0
+
×
17
15
170
0
+
×
18
15
171
0
+
×
19
15
172
0
+
×
20
15
173
0
+
×
52
21
15
174
0
+
×
22
15
175
0
+
×
23
15
176
0
+
×
24
15
177
0
+
×
25
15
178
0
Christmas Day
+
×
26
15
179
0
Saint Stephen's Day
+
×
27
15
180
0
+
×
53
28
15
181
0
+
×
29
15
182
0
+
×
30
15
183
0
+
×
31
15
184
0
+
×
01
January 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
53
01
15
185
0
New Year's Day
+
×
02
15
186
0
Berchtold's Day
+
×
03
15
187
0
+
×
01
04
15
188
0
+
×
05
15
189
0
+
×
06
15
190
0
+
×
07
15
191
0
+
×
08
15
192
0
+
×
09
15
193
0
+
×
10
15
194
0
+
×
02
11
15
195
0
+
×
12
15
196
0
+
×
13
15
197
0
+
×
14
15
198
0
+
×
15
15
199
0
+
×
16
15
200
0
+
×
17
15
201
0
+
×
03
18
15
202
0
+
×
19
15
203
0
+
×
20
15
204
0
+
×
21
15
205
0
+
×
22
15
206
0
+
×
23
15
207
0
+
×
24
15
208
0
+
×
04
25
15
209
0
+
×
26
15
210
0
+
×
27
15
211
0
+
×
28
15
212
0
+
×
29
15
213
0
+
×
30
15
214
0
+
×
31
15
215
0
+
×
05
February 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
05
01
15
216
0
+
×
02
15
217
0
+
×
03
15
218
0
+
×
04
15
219
0
+
×
05
15
220
0
+
×
06
15
221
0
+
×
07
15
222
0
+
×
06
08
15
223
0
+
×
09
15
224
0
+
×
10
15
225
0
+
×
11
15
226
0
+
×
12
15
227
0
+
×
13
15
228
0
+
×
14
15
229
0
+
×
07
15
15
230
0
+
×
16
15
231
0
+
×
17
15
232
0
+
×
18
15
233
0
+
×
19
15
234
0
+
×
20
15
235
0
+
×
21
15
236
0
+
×
08
22
15
237
0
+
×
23
15
238
0
+
×
24
15
239
0
+
×
25
15
240
0
+
×
26
15
241
0
+
×
27
15
242
0
+
×
28
15
243
0
+
×
09
10
March 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
09
01
15
244
0
+
×
02
15
245
0
+
×
03
15
246
0
+
×
04
15
247
0
+
×
05
15
248
0
+
×
06
15
249
0
+
×
07
15
250
0
+
×
10
08
15
251
0
+
×
09
15
252
0
+
×
10
15
253
0
+
×
11
15
254
0
+
×
12
15
255
0
+
×
13
15
256
0
+
×
14
15
257
0
+
×
11
15
15
258
0
+
×
16
15
259
0
+
×
17
15
260
0
+
×
18
15
261
0
+
×
19
15
262
0
+
×
20
15
263
0
+
×
21
15
264
0
+
×
12
22
15
265
0
+
×
23
15
266
0
+
×
24
15
267
0
+
×
25
15
268
0
+
×
26
15
269
0
+
×
27
15
270
0
+
×
28
15
271
0
+
×
13
29
15
272
0
+
×
30
15
273
0
+
×
31
15
274
0
+
×
14
April 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
13
01
15
275
0
+
×
02
15
276
0
Good Friday
+
×
03
15
277
0
+
×
04
15
278
0
+
×
14
05
15
279
0
Easter Monday
+
×
06
15
280
0
+
×
07
15
281
0
+
×
08
15
282
0
+
×
09
15
283
0
+
×
10
15
284
0
+
×
11
15
285
0
+
×
15
12
15
286
0
+
×
13
15
287
0
+
×
14
15
288
0
+
×
15
15
289
0
+
×
16
15
290
0
+
×
17
15
291
0
+
×
18
15
292
0
+
×
16
19
15
293
0
+
×
20
15
294
0
+
×
21
15
295
0
+
×
22
15
296
0
+
×
23
15
297
0
+
×
24
15
298
0
+
×
25
15
299
0
+
×
17
26
15
300
0
+
×
27
15
301
0
+
×
28
15
302
0
+
×
29
15
303
0
+
×
30
15
304
0
+
×
18
May 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
17
01
15
305
0
+
×
02
15
306
0
+
×
18
03
15
307
0
+
×
04
15
308
0
+
×
05
15
309
0
+
×
06
15
310
0
+
×
07
15
311
0
+
×
08
15
312
0
+
×
09
15
313
0
+
×
19
10
15
314
0
+
×
11
15
315
0
+
×
12
15
316
0
+
×
13
15
317
0
Ascension Day
+
×
14
15
318
0
+
×
15
15
319
0
+
×
16
15
320
0
+
×
20
17
15
321
0
+
×
18
15
322
0
+
×
19
15
323
0
+
×
20
15
324
0
+
×
21
15
325
0
+
×
22
15
326
0
+
×
23
15
327
0
+
×
21
24
15
328
0
Whit Monday
+
×
25
15
329
0
+
×
26
15
330
0
+
×
27
15
331
0
+
×
28
15
332
0
+
×
29
15
333
0
+
×
30
15
334
0
+
×
22
31
15
335
0
+
×
June 2021
week
Mon
Tue
Wed
Thu
Fri
Sat
Sun
22
01
15
336
0
+
×
02
15
337
0
+
×
03
15
338
0
+
×
04
15
339
0
+
×
05
15
340
0
+
×
06
15
341
0
+
×
23
07
15
342
0
+
×
08
15
343
0
+
×
09
15
344
0
+
×
10
15
345
0
+
×
11
15
346
0
+
×
12
15
347
0
+
×
13
15
348
0
+
×
24
14
15
349
0
+
×
15
15
350
0
+
×
16
15
351
0
+
×
17
15
352
0
+
×
18
15
353
0
+
×
19
15
354
0
+
×
20
15
355
0
+
×
25
21
15
356
0
+
×
22
15
357
0
+
×
23
15
358
0
+
×
24
15
359
0
+
×
25
15
360
0
+
×
26
15
361
0
+
×
27
15
362
0
+
×
26
28
15
363
0
+
×
29
15
364
0
+
×
30
15
365
0
+
×
27
 
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
Share your result!
A suggestion?
A question or an error to report?

Do not hesitate to reach us at:
contact@workingdays.org