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Days
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Working days
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Weekend days
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Public holidays
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Vacations

Working days numbering

Over the period from Tuesday, 1 January, 1980 to Wednesday, 31 December, 1980

January 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
31
42
5
6
73
84
95
106
117
12
13
148
159
1610
1711
1812
19
20
2113
2214
2315
2416
2517
26
27
2818
2919
3020
3121
Weekend day
Public holiday: New Year's Day
Public holiday: New Year's Holiday
February 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
122
2
3
423
524
625
726
827
9
10
1128
1229
1330
1431
1532
16
17
1833
1934
2035
2136
2237
23
24
2538
2639
2740
2841
2942
Weekend day
March 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
343
444
545
646
747
8
9
1048
1149
1250
1351
1452
15
16
1753
1854
1955
2056
2157
22
23
2458
2559
2660
2761
2862
29
30
3163
Weekend day
April 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
164
265
366
467
5
6
768
869
970
1071
1172
12
13
1473
1574
1675
1776
1877
19
20
2178
2279
2380
2481
2582
26
27
2883
2984
3085
Weekend day
May 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3
4
586
687
788
889
990
10
11
1291
1392
1493
1594
1695
17
18
1996
2097
2198
2299
23100
24
25
26101
27102
28103
29104
30105
31
Weekend day
Public holiday: May Day
Public holiday: May Day Holiday
June 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2106
3107
4108
5109
6110
7
8
9111
10112
11113
12114
13115
14
15
16116
17117
18118
19119
20120
21
22
23121
24122
25123
26124
27125
28
29
30126
Weekend day
July 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1127
2128
3129
4130
5
6
7131
8132
9133
10134
11135
12
13
14136
15137
16138
17139
18140
19
20
21141
22142
23143
24144
25145
26
27
28146
29147
30148
31149
Weekend day
August 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1150
2
3
4151
5152
6153
7154
8155
9
10
11156
12157
13158
14159
15160
16
17
18161
19162
20163
21164
22165
23
24
25166
26167
27168
28169
29170
30
31
Weekend day
September 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1171
2172
3173
4174
5175
6
7
8176
9177
10178
11179
12180
13
14
15181
16182
17183
18184
19185
20
21
22186
23187
24188
25189
26190
27
28
29191
30192
Weekend day
October 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1193
2194
3195
4
5
6196
7197
8198
9199
10200
11
12
13201
14202
15203
16204
17205
18
19
20206
21207
22208
23209
24210
25
26
27211
28212
29213
30214
31215
Weekend day
November 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3216
4217
5218
6219
7220
8
9
10221
11222
12223
13224
14225
15
16
17226
18227
19228
20229
21230
22
23
24231
25232
26233
27234
28235
29
30
Weekend day
December 1980
258 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1236
2237
3238
4239
5240
6
7
8241
9242
10243
11244
12245
13
14
15246
16247
17248
18249
19250
20
21
22251
23252
24253
25254
26255
27
28
29256
30257
31258
Weekend day

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Working days in a year:   ‹ 1979 | 1980 | 1981 ›
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