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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
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
21
32
43
5
6
74
85
96
107
118
12
13
149
1510
1611
1712
1813
19
20
2114
2215
2316
2417
2518
26
27
2819
2920
3021
3122
Weekend day
Public holiday: New Year's Day
February 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
123
2
3
424
525
626
727
828
9
10
1129
1230
1331
1432
15
16
17
1833
1934
2035
2136
2237
23
24
2538
2639
2740
2841
2942
Weekend day
Public holiday: Seollal / Korean New Year Holiday
March 1980
248 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
Public holiday: Independence Movement Day
April 1980
248 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
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
186
287
3
4
5
688
789
890
991
10
11
1292
1393
1494
1595
1696
17
18
1997
2098
21
2299
23100
24
25
26101
27102
28103
29104
30105
31
Weekend day
Public holiday: Children's Day
Public holiday: Buddha's Birthday
June 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2106
3107
4108
5109
6
7
8
9110
10111
11112
12113
13114
14
15
16115
17116
18117
19118
20119
21
22
23120
24121
25122
26123
27124
28
29
30125
Weekend day
Public holiday: Memorial Day
July 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1126
2127
3128
4129
5
6
7130
8131
9132
10133
11134
12
13
14135
15136
16137
17
18138
19
20
21139
22140
23141
24142
25143
26
27
28144
29145
30146
31147
Weekend day
Public holiday: Constitution Day
August 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1148
2
3
4149
5150
6151
7152
8153
9
10
11154
12155
13156
14157
15
16
17
18158
19159
20160
21161
22162
23
24
25163
26164
27165
28166
29167
30
31
Weekend day
Public holiday: Liberation Day
September 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1168
2169
3170
4171
5172
6
7
8173
9174
10175
11176
12177
13
14
15178
16179
17180
18181
19182
20
21
22
23
24
25183
26184
27
28
29185
30186
Weekend day
Public holiday: Chuseok / Midautumn Festival
October 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2187
3
4
5
6188
7189
8190
9
10191
11
12
13192
14193
15194
16195
17196
18
19
20197
21198
22199
23200
24201
25
26
27202
28203
29204
30205
31206
Weekend day
Public holiday: Armed Forces Day
Public holiday: National Foundation Day
Public holiday: Hangeul Day
November 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3207
4208
5209
6210
7211
8
9
10212
11213
12214
13215
14216
15
16
17217
18218
19219
20220
21221
22
23
24222
25223
26224
27225
28226
29
30
Weekend day
December 1980
248 working days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1227
2228
3229
4230
5231
6
7
8232
9233
10234
11235
12236
13
14
15237
16238
17239
18240
19241
20
21
22242
23243
24244
25
26245
27
28
29246
30247
31248
Weekend day
Public holiday: Christmas Day

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