ISO Week Numbers 1990

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All 52 ISO weeks in 1990. Week 1 is the first week with at least four days in January; weeks run Monday through Sunday.

1989 Week Number Calculator1991
WeekISO codeYYWWWeek startsWeek ends
11990-W019001Monday, January 1, 1990Sunday, January 7, 1990
21990-W029002Monday, January 8, 1990Sunday, January 14, 1990
31990-W039003Monday, January 15, 1990Sunday, January 21, 1990
41990-W049004Monday, January 22, 1990Sunday, January 28, 1990
51990-W059005Monday, January 29, 1990Sunday, February 4, 1990
61990-W069006Monday, February 5, 1990Sunday, February 11, 1990
71990-W079007Monday, February 12, 1990Sunday, February 18, 1990
81990-W089008Monday, February 19, 1990Sunday, February 25, 1990
91990-W099009Monday, February 26, 1990Sunday, March 4, 1990
101990-W109010Monday, March 5, 1990Sunday, March 11, 1990
111990-W119011Monday, March 12, 1990Sunday, March 18, 1990
121990-W129012Monday, March 19, 1990Sunday, March 25, 1990
131990-W139013Monday, March 26, 1990Sunday, April 1, 1990
141990-W149014Monday, April 2, 1990Sunday, April 8, 1990
151990-W159015Monday, April 9, 1990Sunday, April 15, 1990
161990-W169016Monday, April 16, 1990Sunday, April 22, 1990
171990-W179017Monday, April 23, 1990Sunday, April 29, 1990
181990-W189018Monday, April 30, 1990Sunday, May 6, 1990
191990-W199019Monday, May 7, 1990Sunday, May 13, 1990
201990-W209020Monday, May 14, 1990Sunday, May 20, 1990
211990-W219021Monday, May 21, 1990Sunday, May 27, 1990
221990-W229022Monday, May 28, 1990Sunday, June 3, 1990
231990-W239023Monday, June 4, 1990Sunday, June 10, 1990
241990-W249024Monday, June 11, 1990Sunday, June 17, 1990
251990-W259025Monday, June 18, 1990Sunday, June 24, 1990
261990-W269026Monday, June 25, 1990Sunday, July 1, 1990
271990-W279027Monday, July 2, 1990Sunday, July 8, 1990
281990-W289028Monday, July 9, 1990Sunday, July 15, 1990
291990-W299029Monday, July 16, 1990Sunday, July 22, 1990
301990-W309030Monday, July 23, 1990Sunday, July 29, 1990
311990-W319031Monday, July 30, 1990Sunday, August 5, 1990
321990-W329032Monday, August 6, 1990Sunday, August 12, 1990
331990-W339033Monday, August 13, 1990Sunday, August 19, 1990
341990-W349034Monday, August 20, 1990Sunday, August 26, 1990
351990-W359035Monday, August 27, 1990Sunday, September 2, 1990
361990-W369036Monday, September 3, 1990Sunday, September 9, 1990
371990-W379037Monday, September 10, 1990Sunday, September 16, 1990
381990-W389038Monday, September 17, 1990Sunday, September 23, 1990
391990-W399039Monday, September 24, 1990Sunday, September 30, 1990
401990-W409040Monday, October 1, 1990Sunday, October 7, 1990
411990-W419041Monday, October 8, 1990Sunday, October 14, 1990
421990-W429042Monday, October 15, 1990Sunday, October 21, 1990
431990-W439043Monday, October 22, 1990Sunday, October 28, 1990
441990-W449044Monday, October 29, 1990Sunday, November 4, 1990
451990-W459045Monday, November 5, 1990Sunday, November 11, 1990
461990-W469046Monday, November 12, 1990Sunday, November 18, 1990
471990-W479047Monday, November 19, 1990Sunday, November 25, 1990
481990-W489048Monday, November 26, 1990Sunday, December 2, 1990
491990-W499049Monday, December 3, 1990Sunday, December 9, 1990
501990-W509050Monday, December 10, 1990Sunday, December 16, 1990
511990-W519051Monday, December 17, 1990Sunday, December 23, 1990
521990-W529052Monday, December 24, 1990Sunday, December 30, 1990

ISO weeks start on Monday. Week 1 is the first week with at least four days in the new year.