Years, Leap Years, Number of Days and Weeks in a Year

List of years 1800-2100

ISO weeks: Number of weeks according to ISO-8601 (weeks starting on Monday). First week is the week with a Thursday in the new year (first 4-day week).
Leap years: Every year that is divisible by four is a leap year, except for years that are divisible by 100, but not by 400.

YearNr of daysNr of ISO weeksLeap year
180036552
180136553
180236552
180336552
180436652Yes
180536552
180636552
180736553
180836652Yes
180936552
181036552
181136552
181236653Yes
181336552
181436552
181536552
181636652Yes
181736552
181836553
181936552
182036652Yes
182136552
182236552
182336552
182436653Yes
182536552
182636552
182736552
182836652Yes
182936553
183036552
183136552
183236652Yes
183336552
183436552
183536553
183636652Yes
183736552
183836552
183936552
184036653Yes
184136552
184236552
184336552
184436652Yes
184536552
184636553
184736552
184836652Yes
184936552
185036552
185136552
185236653Yes
185336552
185436552
185536552
185636652Yes
185736553
185836552
185936552
186036652Yes
186136552
186236552
186336553
186436652Yes
186536552
186636552
186736552
186836653Yes
186936552
187036552
187136552
187236652Yes
187336552
187436553
187536552
187636652Yes
187736552
187836552
187936552
188036653Yes
188136552
188236552
188336552
188436652Yes
188536553
188636552
188736552
188836652Yes
188936552
189036552
189136553
189236652Yes
189336552
189436552
189536552
189636653Yes
189736552
189836552
189936552
190036552
190136552
190236552
190336553
190436652Yes
190536552
190636552
190736552
190836653Yes
190936552
191036552
191136552
191236652Yes
191336552
191436553
191536552
191636652Yes
191736552
191836552
191936552
192036653Yes
192136552
192236552
192336552
192436652Yes
192536553
192636552
192736552
192836652Yes
192936552
193036552
193136553
193236652Yes
193336552
193436552
193536552
193636653Yes
193736552
193836552
193936552
194036652Yes
194136552
194236553
194336552
194436652Yes
194536552
194636552
194736552
194836653Yes
194936552
195036552
195136552
195236652Yes
195336553
195436552
195536552
195636652Yes
195736552
195836552
195936553
196036652Yes
196136552
196236552
196336552
196436653Yes
196536552
196636552
196736552
196836652Yes
196936552
197036553
197136552
197236652Yes
197336552
197436552
197536552
197636653Yes
197736552
197836552
197936552
198036652Yes
198136553
198236552
198336552
198436652Yes
198536552
198636552
198736553
198836652Yes
198936552
199036552
199136552
199236653Yes
199336552
199436552
199536552
199636652Yes
199736552
199836553
199936552
200036652Yes
200136552
200236552
200336552
200436653Yes
200536552
200636552
200736552
200836652Yes
200936553
201036552
201136552
201236652Yes
201336552
201436552
201536553
201636652Yes
201736552
201836552
201936552
202036653Yes
202136552
202236552
202336552
202436652Yes
202536552
202636553
202736552
202836652Yes
202936552
203036552
203136552
203236653Yes
203336552
203436552
203536552
203636652Yes
203736553
203836552
203936552
204036652Yes
204136552
204236552
204336553
204436652Yes
204536552
204636552
204736552
204836653Yes
204936552
205036552
205136552
205236652Yes
205336552
205436553
205536552
205636652Yes
205736552
205836552
205936552
206036653Yes
206136552
206236552
206336552
206436652Yes
206536553
206636552
206736552
206836652Yes
206936552
207036552
207136553
207236652Yes
207336552
207436552
207536552
207636653Yes
207736552
207836552
207936552
208036652Yes
208136552
208236553
208336552
208436652Yes
208536552
208636552
208736552
208836653Yes
208936552
209036552
209136552
209236652Yes
209336553
209436552
209536552
209636652Yes
209736552
209836552
209936553
210036552