2000 is leap year
is not future date
is past date
julian days is 328
day of week is 2
week of year is 36
quarter of year is 4
begin of next month is 20251201
end of next month is 20251231
begin of prev month is 20251001
end of prev month is 20251031
date to days is 2451831
days to date is 2000年10月13日
next week day is 20251125
prev week day is 20251121
the next sunday from today occurs on 20251130
the prev sunday from today occurs on 20251123
the next sunday on or from today occurs on 20251130
the prev sunday on or from today occurs on 20251123
the next day is 20251125
the prev day is 20251123
date diff is 365
default century for 99 is 1999
days in month is 30
first weekday of month is 3
begin of month is 20251101
begin of week is 20251124
end of week is 20251130
begin of next week is 20251201
begin of prev week is 20251117
date is valid first day of week is 20000814
last day of week is 20000903
weekday abbr is Sa
The third monday of September, 2000 is: 2000年09月18日

calendar week:
20010101 20010102 20010103 20010104 20010105 20010106 20010107

calendar month: (with format %b)
Oct Oct Nov Nov Nov Nov Nov
Nov Nov Nov Nov Nov Nov Nov
Nov Nov Nov Nov Nov Nov Nov
Nov Nov Nov Nov Nov Nov Nov
Nov Nov Nov Nov Dec Dec Dec

calendar year:
19991227 19991228 19991229 19991230 19991231 20000101 20000102
20000103 20000104 20000105 20000106 20000107 20000108 20000109
20000110 20000111 20000112 20000113 20000114 20000115 20000116
20000117 20000118 20000119 20000120 20000121 20000122 20000123
20000124 20000125 20000126 20000127 20000128 20000129 20000130
20000131 20000201 20000202 20000203 20000204 20000205 20000206

20000131 20000201 20000202 20000203 20000204 20000205 20000206
20000207 20000208 20000209 20000210 20000211 20000212 20000213
20000214 20000215 20000216 20000217 20000218 20000219 20000220
20000221 20000222 20000223 20000224 20000225 20000226 20000227
20000228 20000229 20000301 20000302 20000303 20000304 20000305

20000228 20000229 20000301 20000302 20000303 20000304 20000305
20000306 20000307 20000308 20000309 20000310 20000311 20000312
20000313 20000314 20000315 20000316 20000317 20000318 20000319
20000320 20000321 20000322 20000323 20000324 20000325 20000326
20000327 20000328 20000329 20000330 20000331 20000401 20000402

20000327 20000328 20000329 20000330 20000331 20000401 20000402
20000403 20000404 20000405 20000406 20000407 20000408 20000409
20000410 20000411 20000412 20000413 20000414 20000415 20000416
20000417 20000418 20000419 20000420 20000421 20000422 20000423
20000424 20000425 20000426 20000427 20000428 20000429 20000430

20000501 20000502 20000503 20000504 20000505 20000506 20000507
20000508 20000509 20000510 20000511 20000512 20000513 20000514
20000515 20000516 20000517 20000518 20000519 20000520 20000521
20000522 20000523 20000524 20000525 20000526 20000527 20000528
20000529 20000530 20000531 20000601 20000602 20000603 20000604

20000529 20000530 20000531 20000601 20000602 20000603 20000604
20000605 20000606 20000607 20000608 20000609 20000610 20000611
20000612 20000613 20000614 20000615 20000616 20000617 20000618
20000619 20000620 20000621 20000622 20000623 20000624 20000625
20000626 20000627 20000628 20000629 20000630 20000701 20000702

20000626 20000627 20000628 20000629 20000630 20000701 20000702
20000703 20000704 20000705 20000706 20000707 20000708 20000709
20000710 20000711 20000712 20000713 20000714 20000715 20000716
20000717 20000718 20000719 20000720 20000721 20000722 20000723
20000724 20000725 20000726 20000727 20000728 20000729 20000730
20000731 20000801 20000802 20000803 20000804 20000805 20000806

20000731 20000801 20000802 20000803 20000804 20000805 20000806
20000807 20000808 20000809 20000810 20000811 20000812 20000813
20000814 20000815 20000816 20000817 20000818 20000819 20000820
20000821 20000822 20000823 20000824 20000825 20000826 20000827
20000828 20000829 20000830 20000831 20000901 20000902 20000903

20000828 20000829 20000830 20000831 20000901 20000902 20000903
20000904 20000905 20000906 20000907 20000908 20000909 20000910
20000911 20000912 20000913 20000914 20000915 20000916 20000917
20000918 20000919 20000920 20000921 20000922 20000923 20000924
20000925 20000926 20000927 20000928 20000929 20000930 20001001

20000925 20000926 20000927 20000928 20000929 20000930 20001001
20001002 20001003 20001004 20001005 20001006 20001007 20001008
20001009 20001010 20001011 20001012 20001013 20001014 20001015
20001016 20001017 20001018 20001019 20001020 20001021 20001022
20001023 20001024 20001025 20001026 20001027 20001028 20001029
20001030 20001031 20001101 20001102 20001103 20001104 20001105

20001030 20001031 20001101 20001102 20001103 20001104 20001105
20001106 20001107 20001108 20001109 20001110 20001111 20001112
20001113 20001114 20001115 20001116 20001117 20001118 20001119
20001120 20001121 20001122 20001123 20001124 20001125 20001126
20001127 20001128 20001129 20001130 20001201 20001202 20001203

20001127 20001128 20001129 20001130 20001201 20001202 20001203
20001204 20001205 20001206 20001207 20001208 20001209 20001210
20001211 20001212 20001213 20001214 20001215 20001216 20001217
20001218 20001219 20001220 20001221 20001222 20001223 20001224
20001225 20001226 20001227 20001228 20001229 20001230 20001231

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