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