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I know I want to be on vacation
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Calendar
School holidays :
The Holidays      ptimizer
It tells you when to take your days off to maximize the length of your vacation
Calendar
 
Language
 ▶
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 ()
May 2019
week
mon
tue
wed
thu
fri
sat
sun
18
19
20
21
23
15
0
0
+
×
24
15
1
0
+
×
25
15
2
0
+
×
26
15
3
0
+
×
22
27
15
4
0
Spring Bank Holiday
+
×
28
15
5
0
+
×
29
15
6
0
+
×
30
15
7
0
+
×
31
15
8
0
+
×
23
June 2019
week
mon
tue
wed
thu
fri
sat
sun
22
01
15
9
0
+
×
02
15
10
0
+
×
23
03
15
11
0
+
×
04
15
12
0
+
×
05
15
13
0
+
×
06
15
14
0
+
×
07
15
15
0
+
×
08
15
16
0
+
×
09
15
17
0
+
×
24
10
15
18
0
+
×
11
15
19
0
+
×
12
15
20
0
+
×
13
15
21
0
+
×
14
15
22
0
+
×
15
15
23
0
+
×
16
15
24
0
+
×
25
17
15
25
0
+
×
18
15
26
0
+
×
19
15
27
0
+
×
20
15
28
0
+
×
21
15
29
0
+
×
22
15
30
0
+
×
23
15
31
0
+
×
26
24
15
32
0
+
×
25
15
33
0
+
×
26
15
34
0
+
×
27
15
35
0
+
×
28
15
36
0
+
×
29
15
37
0
+
×
30
15
38
0
+
×
27
July 2019
week
mon
tue
wed
thu
fri
sat
sun
27
01
15
39
0
+
×
02
15
40
0
+
×
03
15
41
0
+
×
04
15
42
0
+
×
05
15
43
0
+
×
06
15
44
0
+
×
07
15
45
0
+
×
28
08
15
46
0
+
×
09
15
47
0
+
×
10
15
48
0
+
×
11
15
49
0
+
×
12
15
50
0
+
×
13
15
51
0
+
×
14
15
52
0
+
×
29
15
15
53
0
+
×
16
15
54
0
+
×
17
15
55
0
+
×
18
15
56
0
+
×
19
15
57
0
+
×
20
15
58
0
+
×
21
15
59
0
+
×
30
22
15
60
0
+
×
23
15
61
0
+
×
24
15
62
0
+
×
25
15
63
0
+
×
26
15
64
0
+
×
27
15
65
0
+
×
28
15
66
0
+
×
31
29
15
67
0
+
×
30
15
68
0
+
×
31
15
69
0
+
×
32
August 2019
week
mon
tue
wed
thu
fri
sat
sun
31
01
15
70
0
+
×
02
15
71
0
+
×
03
15
72
0
+
×
04
15
73
0
+
×
32
05
15
74
0
+
×
06
15
75
0
+
×
07
15
76
0
+
×
08
15
77
0
+
×
09
15
78
0
+
×
10
15
79
0
+
×
11
15
80
0
+
×
33
12
15
81
0
+
×
13
15
82
0
+
×
14
15
83
0
+
×
15
15
84
0
+
×
16
15
85
0
+
×
17
15
86
0
+
×
18
15
87
0
+
×
34
19
15
88
0
+
×
20
15
89
0
+
×
21
15
90
0
+
×
22
15
91
0
+
×
23
15
92
0
+
×
24
15
93
0
+
×
25
15
94
0
+
×
35
26
15
95
0
Late Summer Bank Hol.
+
×
27
15
96
0
+
×
28
15
97
0
+
×
29
15
98
0
+
×
30
15
99
0
+
×
31
15
100
0
+
×
36
 
September 2019
week
mon
tue
wed
thu
fri
sat
sun
35
01
15
101
0
+
×
36
02
15
102
0
+
×
03
15
103
0
+
×
04
15
104
0
+
×
05
15
105
0
+
×
06
15
106
0
+
×
07
15
107
0
+
×
08
15
108
0
+
×
37
09
15
109
0
+
×
10
15
110
0
+
×
11
15
111
0
+
×
12
15
112
0
+
×
13
15
113
0
+
×
14
15
114
0
+
×
15
15
115
0
+
×
38
16
15
116
0
+
×
17
15
117
0
+
×
18
15
118
0
+
×
19
15
119
0
+
×
20
15
120
0
+
×
21
15
121
0
+
×
22
15
122
0
+
×
39
23
15
123
0
+
×
24
15
124
0
+
×
25
15
125
0
+
×
26
15
126
0
+
×
27
15
127
0
+
×
28
15
128
0
+
×
29
15
129
0
+
×
40
30
15
130
0
+
×
October 2019
week
mon
tue
wed
thu
fri
sat
sun
40
01
15
131
0
+
×
02
15
132
0
+
×
03
15
133
0
+
×
04
15
134
0
+
×
05
15
135
0
+
×
06
15
136
0
+
×
41
07
15
137
0
+
×
08
15
138
0
+
×
09
15
139
0
+
×
10
15
140
0
+
×
11
15
141
0
+
×
12
15
142
0
+
×
13
15
143
0
+
×
42
14
15
144
0
+
×
15
15
145
0
+
×
16
15
146
0
+
×
17
15
147
0
+
×
18
15
148
0
+
×
19
15
149
0
+
×
20
15
150
0
+
×
43
21
15
151
0
+
×
22
15
152
0
+
×
23
15
153
0
+
×
24
15
154
0
+
×
25
15
155
0
+
×
26
15
156
0
+
×
27
15
157
0
+
×
44
28
15
158
0
+
×
29
15
159
0
+
×
30
15
160
0
+
×
31
15
161
0
+
×
45
November 2019
week
mon
tue
wed
thu
fri
sat
sun
44
01
15
162
0
+
×
02
15
163
0
+
×
03
15
164
0
+
×
45
04
15
165
0
+
×
05
15
166
0
+
×
06
15
167
0
+
×
07
15
168
0
+
×
08
15
169
0
+
×
09
15
170
0
+
×
10
15
171
0
+
×
46
11
15
172
0
+
×
12
15
173
0
+
×
13
15
174
0
+
×
14
15
175
0
+
×
15
15
176
0
+
×
16
15
177
0
+
×
17
15
178
0
+
×
47
18
15
179
0
+
×
19
15
180
0
+
×
20
15
181
0
+
×
21
15
182
0
+
×
22
15
183
0
+
×
23
15
184
0
+
×
24
15
185
0
+
×
48
25
15
186
0
+
×
26
15
187
0
+
×
27
15
188
0
+
×
28
15
189
0
+
×
29
15
190
0
+
×
30
15
191
0
+
×
49
December 2019
week
mon
tue
wed
thu
fri
sat
sun
48
01
15
192
0
+
×
49
02
15
193
0
+
×
03
15
194
0
+
×
04
15
195
0
+
×
05
15
196
0
+
×
06
15
197
0
+
×
07
15
198
0
+
×
08
15
199
0
+
×
50
09
15
200
0
+
×
10
15
201
0
+
×
11
15
202
0
+
×
12
15
203
0
+
×
13
15
204
0
+
×
14
15
205
0
+
×
15
15
206
0
+
×
51
16
15
207
0
+
×
17
15
208
0
+
×
18
15
209
0
+
×
19
15
210
0
+
×
20
15
211
0
+
×
21
15
212
0
+
×
22
15
213
0
+
×
52
23
15
214
0
+
×
24
15
215
0
+
×
25
15
216
0
Christmas Day
+
×
26
15
217
0
Boxing Day
+
×
27
15
218
0
+
×
28
15
219
0
+
×
29
15
220
0
+
×
01
30
15
221
0
+
×
31
15
222
0
+
×
January 2020
week
mon
tue
wed
thu
fri
sat
sun
01
01
15
223
0
New Year's Day
+
×
02
15
224
0
+
×
03
15
225
0
+
×
04
15
226
0
+
×
05
15
227
0
+
×
02
06
15
228
0
+
×
07
15
229
0
+
×
08
15
230
0
+
×
09
15
231
0
+
×
10
15
232
0
+
×
11
15
233
0
+
×
12
15
234
0
+
×
03
13
15
235
0
+
×
14
15
236
0
+
×
15
15
237
0
+
×
16
15
238
0
+
×
17
15
239
0
+
×
18
15
240
0
+
×
19
15
241
0
+
×
04
20
15
242
0
+
×
21
15
243
0
+
×
22
15
244
0
+
×
23
15
245
0
+
×
24
15
246
0
+
×
25
15
247
0
+
×
26
15
248
0
+
×
05
27
15
249
0
+
×
28
15
250
0
+
×
29
15
251
0
+
×
30
15
252
0
+
×
31
15
253
0
+
×
06
February 2020
week
mon
tue
wed
thu
fri
sat
sun
05
01
15
254
0
+
×
02
15
255
0
+
×
06
03
15
256
0
+
×
04
15
257
0
+
×
05
15
258
0
+
×
06
15
259
0
+
×
07
15
260
0
+
×
08
15
261
0
+
×
09
15
262
0
+
×
07
10
15
263
0
+
×
11
15
264
0
+
×
12
15
265
0
+
×
13
15
266
0
+
×
14
15
267
0
+
×
15
15
268
0
+
×
16
15
269
0
+
×
08
17
15
270
0
+
×
18
15
271
0
+
×
19
15
272
0
+
×
20
15
273
0
+
×
21
15
274
0
+
×
22
15
275
0
+
×
23
15
276
0
+
×
09
24
15
277
0
+
×
25
15
278
0
+
×
26
15
279
0
+
×
27
15
280
0
+
×
28
15
281
0
+
×
29
15
282
0
+
×
10
March 2020
week
mon
tue
wed
thu
fri
sat
sun
09
01
15
283
0
+
×
10
02
15
284
0
+
×
03
15
285
0
+
×
04
15
286
0
+
×
05
15
287
0
+
×
06
15
288
0
+
×
07
15
289
0
+
×
08
15
290
0
+
×
11
09
15
291
0
+
×
10
15
292
0
+
×
11
15
293
0
+
×
12
15
294
0
+
×
13
15
295
0
+
×
14
15
296
0
+
×
15
15
297
0
+
×
12
16
15
298
0
+
×
17
15
299
0
+
×
18
15
300
0
+
×
19
15
301
0
+
×
20
15
302
0
+
×
21
15
303
0
+
×
22
15
304
0
+
×
13
23
15
305
0
+
×
24
15
306
0
+
×
25
15
307
0
+
×
26
15
308
0
+
×
27
15
309
0
+
×
28
15
310
0
+
×
29
15
311
0
+
×
14
30
15
312
0
+
×
31
15
313
0
+
×
April 2020
week
mon
tue
wed
thu
fri
sat
sun
14
01
15
314
0
+
×
02
15
315
0
+
×
03
15
316
0
+
×
04
15
317
0
+
×
05
15
318
0
+
×
15
06
15
319
0
+
×
07
15
320
0
+
×
08
15
321
0
+
×
09
15
322
0
+
×
10
15
323
0
Good Friday
+
×
11
15
324
0
+
×
12
15
325
0
+
×
16
13
15
326
0
Easter Monday
+
×
14
15
327
0
+
×
15
15
328
0
+
×
16
15
329
0
+
×
17
15
330
0
+
×
18
15
331
0
+
×
19
15
332
0
+
×
17
20
15
333
0
+
×
21
15
334
0
+
×
22
15
335
0
+
×
23
15
336
0
+
×
24
15
337
0
+
×
25
15
338
0
+
×
26
15
339
0
+
×
18
27
15
340
0
+
×
28
15
341
0
+
×
29
15
342
0
+
×
30
15
343
0
+
×
19
May 2020
week
mon
tue
wed
thu
fri
sat
sun
18
01
15
344
0
+
×
02
15
345
0
+
×
03
15
346
0
+
×
19
04
15
347
0
Early May Day Bank Hol.
+
×
05
15
348
0
+
×
06
15
349
0
+
×
07
15
350
0
+
×
08
15
351
0
+
×
09
15
352
0
+
×
10
15
353
0
+
×
20
11
15
354
0
+
×
12
15
355
0
+
×
13
15
356
0
+
×
14
15
357
0
+
×
15
15
358
0
+
×
16
15
359
0
+
×
17
15
360
0
+
×
21
18
15
361
0
+
×
19
15
362
0
+
×
20
15
363
0
+
×
21
15
364
0
+
×
22
15
365
0
+
×
23
15
366
0
+
×
24
15
367
0
+
×
22
25
15
368
0
Spring Bank Holiday
+
×
23
 
Public holidays
Weekend days
Days to take
Holidays
Days to take:
45
Holidays length:
12
Optimization factor:
?
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