36:
175:, with 8784 hours, 527,040 minutes, or 31,622,400 seconds. With 97 leap years every 400 years, the year has an average length of 365.2425 days. Other formula-based calendars can have lengths which are further out of step with the solar cycle: for example, the
206:
can also be measured by starting on any other named day of the calendar, and ending on the day before this named day in the following year. This may be termed a "year's time", but is not a "calendar year".
244:
conventions. One in five to six years has a 53rd week which is usually appended to the last quarter. It is then 98 days instead of 91 days long, which complicates comparisons.
199:, which is averaged over equinoxes and solstices, is currently 365.24219 days, slightly shorter than the average length of the year in most calendars.
215:
The calendar year can be divided into four quarters, often abbreviated as Q1, Q2, Q3, and Q4. Since they are three months each, they are also called
240:
In some domains, weeks are preferred over months for scheduling and reporting, so they use quarters of exactly 13 weeks each, often following
119:
57:
53:
100:
167:
year, which is in use in most of the world, begins on
January 1 and ends on December 31. It has a length of 365 days in an
72:
160:
79:
46:
86:
398:
393:
68:
388:
220:
196:
164:
17:
145:
137:
357:
248:
184:
93:
296:
259:
180:
176:
188:
149:
382:
336:
331:
316:
291:
241:
156:
306:
301:
192:
168:
35:
326:
171:, with 8760 hours, 525,600 minutes, or 31,536,000 seconds; but 366 days in a
321:
172:
311:
141:
277:
271:
265:
252:
227:
First quarter, Q1: January – March (90 days or 91 days in leap years)
216:
203:
159:(which has a fractional number of days) certain years contain
29:
251:, the quarters are traditionally associated with the 4
148:
the following New Year's Day, and thus consists of a
60:. Unsourced material may be challenged and removed.
236:Fourth quarter, Q4: October – December (92 days)
195:in a year of 354 or 355 days. The astronomer's
179:has an average length of 365.25 days, and the
233:Third quarter, Q3: July – September (92 days)
8:
183:has an average length of 365.2468 days. The
230:Second quarter, Q2: April – June (91 days)
163:("leap days" or "intercalary days"). The
120:Learn how and when to remove this message
155:To reconcile the calendar year with the
349:
7:
58:adding citations to reliable sources
25:
18:Fourth quarter of a calendar year
34:
45:needs additional citations for
1:
415:
280:: 10th to 12th month
185:Lunar Hijri calendar
54:improve this article
144:system and ends on
274:: 7th to 9th month
268:: 4th to 6th month
262:: 1st to 3rd month
221:Gregorian calendar
197:mean tropical year
157:astronomical cycle
191:consisting of 12
130:
129:
122:
104:
16:(Redirected from
406:
373:
372:
370:
368:
354:
249:Chinese calendar
125:
118:
114:
111:
105:
103:
62:
38:
30:
21:
414:
413:
409:
408:
407:
405:
404:
403:
379:
378:
377:
376:
366:
364:
362:Merriam-Webster
358:"calendar year"
356:
355:
351:
346:
341:
297:Calendar reform
287:
213:
181:Hebrew calendar
177:Julian calendar
126:
115:
109:
106:
69:"Calendar year"
63:
61:
51:
39:
28:
23:
22:
15:
12:
11:
5:
412:
410:
402:
401:
396:
391:
381:
380:
375:
374:
348:
347:
345:
342:
340:
339:
334:
329:
324:
319:
314:
309:
304:
299:
294:
288:
286:
283:
282:
281:
275:
269:
263:
238:
237:
234:
231:
228:
212:
209:
189:lunar calendar
146:the day before
138:New Year's Day
136:begins on the
128:
127:
42:
40:
33:
27:Period of time
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
411:
400:
399:Types of year
397:
395:
394:Units of time
392:
390:
387:
386:
384:
363:
359:
353:
350:
343:
338:
337:Seasonal year
335:
333:
332:Tropical year
330:
328:
325:
323:
320:
318:
317:ISO week date
315:
313:
310:
308:
305:
303:
300:
298:
295:
293:
292:Academic term
290:
289:
284:
279:
276:
273:
270:
267:
264:
261:
258:
257:
256:
255:of the year:
254:
250:
245:
243:
242:ISO week date
235:
232:
229:
226:
225:
224:
222:
218:
210:
208:
205:
200:
198:
194:
190:
186:
182:
178:
174:
170:
169:ordinary year
166:
162:
158:
153:
151:
147:
143:
140:of the given
139:
135:
134:calendar year
124:
121:
113:
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
365:. Retrieved
361:
352:
246:
239:
214:
211:Quarter year
201:
154:
150:whole number
133:
131:
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
307:Fiscal year
302:Common year
383:Categories
344:References
327:Model year
217:trimesters
161:extra days
80:newspapers
389:Calendars
322:Leap year
219:. In the
173:leap year
165:Gregorian
152:of days.
110:June 2009
367:6 August
312:ISO 8601
285:See also
142:calendar
253:seasons
247:In the
94:scholar
278:Winter
272:Autumn
266:Summer
260:Spring
193:months
96:
89:
82:
75:
67:
187:is a
101:JSTOR
87:books
369:2014
204:year
73:news
56:by
385::
360:.
223::
202:A
132:A
371:.
123:)
117:(
112:)
108:(
98:·
91:·
84:·
77:·
50:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
