RFC 3339 vs. ISO 8601

Comparison between some valid RFC 3339 and ISO 8601 date formats.

Screenshot

Format Listing

Notes:

  • This table is not exhaustive.
  • This page targets ISO 8601-1:2019. Previous editions and drafts contain key differences.
  • ISO 8601-2:2019 contains additional representations including sub-year groupings (e.g. for seasons); grouped units; sets; uncertainty qualifications; and date arithmetic. These are not yet represented on this page.
  • RFC 3339 suggests other characters could be specified to replace the T in downstream standards but only gives a space character as an example.
  • RFC 3339 is case-insensitive so every T or Z could also be t or z respectively. Previous editions of ISO 8601 were also case-insensitive.
  • ISO 8601 allows decimal fractions of the smallest time value. These are mostly represented here by a single fractional digit but the standard allows arbitrary precision.
  • ISO 8601 allows commas and dots for decimal separation but they are interchangeable in all formats.
  • ISO 8601-1:2019 permits omitting the T in the time of day representations (Times) when unambiguous.
    However, a T is always required in date and time of day representations (Date-Times).
    Previous editions also allowed omitting the T in Date-Times but it was never permitted to insert alternative characters (e.g. space or underscore).
  • The format key is given below the table.
FormatExampleRFC 3339ISO 8601
Dates
%Y-%M-%D2021-07-27✔️✔️
%C20✔️
%X202✔️
%Y2021✔️
%Y-%M2021-07✔️
%Y-%O2021-208✔️
%V-W%W2021-W30✔️
%V-W%W-%w2021-W30-2✔️
%Y%M%D20210727✔️
%Y%O2021208✔️
%VW%W2021W30✔️
%VW%W%w2021W302✔️
Times
%h:%m:%s%Z:%z22:20:32+08:00✔️✔️
%h:%m:%.1s%Z:%z22:20:32.5+08:00✔️✔️
%h:%m:%.2s%Z:%z22:20:32.55+08:00✔️✔️
%h:%m:%.3s%Z:%z22:20:32.556+08:00✔️✔️
%h:%m:%s.%u%Z:%z22:20:32.556000+08:00✔️✔️
%h:%m:%sZ14:20:32Z✔️✔️
%h:%m:%.1sZ14:20:32.5Z✔️✔️
%h:%m:%.2sZ14:20:32.55Z✔️✔️
%h:%m:%.3sZ14:20:32.556Z✔️✔️
%h:%m:%s.%uZ14:20:32.556000Z✔️✔️
%h:%m:%s+00:0014:20:32+00:00✔️✔️
%h:%m:%.1s+00:0014:20:32.5+00:00✔️✔️
%h:%m:%.3s+00:0014:20:32.556+00:00✔️✔️
%h:%m:%s.%u+00:0014:20:32.556000+00:00✔️✔️
%h:%m:%s-00:0014:20:32-00:00✔️
%h:%m:%.1s-00:0014:20:32.5-00:00✔️
%h:%m:%.3s-00:0014:20:32.556-00:00✔️
%h:%m:%s.%u-00:0014:20:32.556000-00:00✔️
%h22✔️
%,1h22,3✔️
%.1h22.3✔️
%h:%m22:20✔️
%h:%,1m22:20,5✔️
%h:%.1m22:20.5✔️
%h:%m:%s22:20:32✔️
%h:%m:%.1s22:20:32.5✔️
%h:%m:%.2s22:20:32.55✔️
%h:%m:%,3s22:20:32,556✔️
%h:%m:%.3s22:20:32.556✔️
%h:%m:%s,%u22:20:32,556000✔️
%h:%m:%s.%u22:20:32.556000✔️
%hZ14Z✔️
%,1hZ14,3Z✔️
%.1hZ14.3Z✔️
%h:%mZ14:20Z✔️
%h:%,1mZ14:20,5Z✔️
%h:%.1mZ14:20.5Z✔️
%h:%m:%,3sZ14:20:32,556Z✔️
%h:%m:%s,%uZ14:20:32,556000Z✔️
%h%Z22+08✔️
%,1h%Z22,3+08✔️
%.1h%Z22.3+08✔️
%h:%m%Z22:20+08✔️
%h:%,1m%Z22:20,5+08✔️
%h:%.1m%Z22:20.5+08✔️
%h:%m:%s%Z22:20:32+08✔️
%h:%m:%.1s%Z22:20:32.5+08✔️
%h:%m:%.2s%Z22:20:32.55+08✔️
%h:%m:%,3s%Z22:20:32,556+08✔️
%h:%m:%.3s%Z22:20:32.556+08✔️
%h:%m:%s,%u%Z22:20:32,556000+08✔️
%h:%m:%s.%u%Z22:20:32.556000+08✔️
%h%Z:%z22+08:00✔️
%,1h%Z:%z22,3+08:00✔️
%.1h%Z:%z22.3+08:00✔️
%h:%m%Z:%z22:20+08:00✔️
%h:%,1m%Z:%z22:20,5+08:00✔️
%h:%.1m%Z:%z22:20.5+08:00✔️
%h:%m:%,3s%Z:%z22:20:32,556+08:00✔️
%h:%m:%s,%u%Z:%z22:20:32,556000+08:00✔️
T%hT22✔️
T%,1hT22,3✔️
T%.1hT22.3✔️
T%h:%mT22:20✔️
T%h:%,1mT22:20,5✔️
T%h:%.1mT22:20.5✔️
T%h:%m:%sT22:20:32✔️
T%h:%m:%.1sT22:20:32.5✔️
T%h:%m:%.2sT22:20:32.55✔️
T%h:%m:%,3sT22:20:32,556✔️
T%h:%m:%.3sT22:20:32.556✔️
T%h:%m:%s,%uT22:20:32,556000✔️
T%h:%m:%s.%uT22:20:32.556000✔️
T%hZT14Z✔️
T%,1hZT14,3Z✔️
T%.1hZT14.3Z✔️
T%h:%mZT14:20Z✔️
T%h:%,1mZT14:20,5Z✔️
T%h:%.1mZT14:20.5Z✔️
T%h:%m:%sZT14:20:32Z✔️
T%h:%m:%.1sZT14:20:32.5Z✔️
T%h:%m:%.2sZT14:20:32.55Z✔️
T%h:%m:%,3sZT14:20:32,556Z✔️
T%h:%m:%.3sZT14:20:32.556Z✔️
T%h:%m:%s,%uZT14:20:32,556000Z✔️
T%h:%m:%s.%uZT14:20:32.556000Z✔️
T%h%ZT22+08✔️
T%,1h%ZT22,3+08✔️
T%.1h%ZT22.3+08✔️
T%h:%m%ZT22:20+08✔️
T%h:%,1m%ZT22:20,5+08✔️
T%h:%.1m%ZT22:20.5+08✔️
T%h:%m:%s%ZT22:20:32+08✔️
T%h:%m:%.1s%ZT22:20:32.5+08✔️
T%h:%m:%.2s%ZT22:20:32.55+08✔️
T%h:%m:%,3s%ZT22:20:32,556+08✔️
T%h:%m:%.3s%ZT22:20:32.556+08✔️
T%h:%m:%s,%u%ZT22:20:32,556000+08✔️
T%h:%m:%s.%u%ZT22:20:32.556000+08✔️
T%h%Z:%zT22+08:00✔️
T%,1h%Z:%zT22,3+08:00✔️
T%.1h%Z:%zT22.3+08:00✔️
T%h:%m%Z:%zT22:20+08:00✔️
T%h:%,1m%Z:%zT22:20,5+08:00✔️
T%h:%.1m%Z:%zT22:20.5+08:00✔️
T%h:%m:%s%Z:%zT22:20:32+08:00✔️
T%h:%m:%.1s%Z:%zT22:20:32.5+08:00✔️
T%h:%m:%.2s%Z:%zT22:20:32.55+08:00✔️
T%h:%m:%,3s%Z:%zT22:20:32,556+08:00✔️
T%h:%m:%.3s%Z:%zT22:20:32.556+08:00✔️
T%h:%m:%s,%u%Z:%zT22:20:32,556000+08:00✔️
T%h:%m:%s.%u%Z:%zT22:20:32.556000+08:00✔️
%h%m2220✔️
%h%,1m2220,5✔️
%h%.1m2220.5✔️
%h%m%s222032✔️
%h%m%.1s222032.5✔️
%h%m%.2s222032.55✔️
%h%m%,3s222032,556✔️
%h%m%.3s222032.556✔️
%h%m%s,%u222032,556000✔️
%h%m%s.%u222032.556000✔️
%h%mZ1420Z✔️
%h%,1mZ1420,5Z✔️
%h%.1mZ1420.5Z✔️
%h%m%sZ142032Z✔️
%h%m%.1sZ142032.5Z✔️
%h%m%.2sZ142032.55Z✔️
%h%m%,3sZ142032,556Z✔️
%h%m%.3sZ142032.556Z✔️
%h%m%s,%uZ142032,556000Z✔️
%h%m%s.%uZ142032.556000Z✔️
%h%m%Z2220+08✔️
%h%,1m%Z2220,5+08✔️
%h%.1m%Z2220.5+08✔️
%h%m%s%Z222032+08✔️
%h%m%.1s%Z222032.5+08✔️
%h%m%.2s%Z222032.55+08✔️
%h%m%,3s%Z222032,556+08✔️
%h%m%.3s%Z222032.556+08✔️
%h%m%s,%u%Z222032,556000+08✔️
%h%m%s.%u%Z222032.556000+08✔️
%h%Z%z22+0800✔️
%,1h%Z%z22,3+0800✔️
%.1h%Z%z22.3+0800✔️
%h%m%Z%z2220+0800✔️
%h%,1m%Z%z2220,5+0800✔️
%h%.1m%Z%z2220.5+0800✔️
%h%m%s%Z%z222032+0800✔️
%h%m%.1s%Z%z222032.5+0800✔️
%h%m%.2s%Z%z222032.55+0800✔️
%h%m%,3s%Z%z222032,556+0800✔️
%h%m%.3s%Z%z222032.556+0800✔️
%h%m%s,%u%Z%z222032,556000+0800✔️
%h%m%s.%u%Z%z222032.556000+0800✔️
T%h%mT2220✔️
T%h%,1mT2220,5✔️
T%h%.1mT2220.5✔️
T%h%m%sT222032✔️
T%h%m%.1sT222032.5✔️
T%h%m%.2sT222032.55✔️
T%h%m%,3sT222032,556✔️
T%h%m%.3sT222032.556✔️
T%h%m%s,%uT222032,556000✔️
T%h%m%s.%uT222032.556000✔️
T%h%mZT1420Z✔️
T%h%,1mZT1420,5Z✔️
T%h%.1mZT1420.5Z✔️
T%h%m%sZT142032Z✔️
T%h%m%.1sZT142032.5Z✔️
T%h%m%.2sZT142032.55Z✔️
T%h%m%,3sZT142032,556Z✔️
T%h%m%.3sZT142032.556Z✔️
T%h%m%s,%uZT142032,556000Z✔️
T%h%m%s.%uZT142032.556000Z✔️
T%h%m%ZT2220+08✔️
T%h%,1m%ZT2220,5+08✔️
T%h%.1m%ZT2220.5+08✔️
T%h%m%s%ZT222032+08✔️
T%h%m%.1s%ZT222032.5+08✔️
T%h%m%.2s%ZT222032.55+08✔️
T%h%m%,3s%ZT222032,556+08✔️
T%h%m%.3s%ZT222032.556+08✔️
T%h%m%s,%u%ZT222032,556000+08✔️
T%h%m%s.%u%ZT222032.556000+08✔️
T%h%Z%zT22+0800✔️
T%,1h%Z%zT22,3+0800✔️
T%.1h%Z%zT22.3+0800✔️
T%h%m%Z%zT2220+0800✔️
T%h%,1m%Z%zT2220,5+0800✔️
T%h%.1m%Z%zT2220.5+0800✔️
T%h%m%s%Z%zT222032+0800✔️
T%h%m%.1s%Z%zT222032.5+0800✔️
T%h%m%.2s%Z%zT222032.55+0800✔️
T%h%m%,3s%Z%zT222032,556+0800✔️
T%h%m%.3s%Z%zT222032.556+0800✔️
T%h%m%s,%u%Z%zT222032,556000+0800✔️
T%h%m%s.%u%Z%zT222032.556000+0800✔️
Date-Times
%Y-%M-%DT%h:%m:%sZ2021-07-27T14:20:32Z✔️✔️
%Y-%M-%DT%h:%m:%.1sZ2021-07-27T14:20:32.5Z✔️✔️
%Y-%M-%DT%h:%m:%.2sZ2021-07-27T14:20:32.55Z✔️✔️
%Y-%M-%DT%h:%m:%.3sZ2021-07-27T14:20:32.556Z✔️✔️
%Y-%M-%DT%h:%m:%s.%uZ2021-07-27T14:20:32.556000Z✔️✔️
%Y-%M-%Dt%h:%m:%sz2021-07-27t14:20:32z✔️
%Y-%M-%Dt%h:%m:%.3sz2021-07-27t14:20:32.556z✔️
%Y-%M-%DT%h:%m:%s%Z:%z2021-07-27T22:20:32+08:00✔️✔️
%Y-%M-%DT%h:%m:%.3s%Z:%z2021-07-27T22:20:32.556+08:00✔️✔️
%Y-%M-%DT%h:%m:%s.%u%Z:%z2021-07-27T22:20:32.556000+08:00✔️✔️
%Y-%M-%D %h:%m:%s%Z:%z2021-07-27 22:20:32+08:00✔️
%Y-%M-%D %h:%m:%.1s%Z:%z2021-07-27 22:20:32.5+08:00✔️
%Y-%M-%D %h:%m:%.2s%Z:%z2021-07-27 22:20:32.55+08:00✔️
%Y-%M-%D %h:%m:%.3s%Z:%z2021-07-27 22:20:32.556+08:00✔️
%Y-%M-%D %h:%m:%s.%u%Z:%z2021-07-27 22:20:32.556000+08:00✔️
%Y-%M-%D %h:%m:%sZ2021-07-27 14:20:32Z✔️
%Y-%M-%D_%h:%m:%sZ2021-07-27_14:20:32Z✔️
%Y-%M-%D %h:%m:%sz2021-07-27 14:20:32z✔️
%Y-%M-%D_%h:%m:%sz2021-07-27_14:20:32z✔️
%Y-%M-%D %h:%m:%.1sZ2021-07-27 14:20:32.5Z✔️
%Y-%M-%D %h:%m:%.2sZ2021-07-27 14:20:32.55Z✔️
%Y-%M-%D %h:%m:%.3sZ2021-07-27 14:20:32.556Z✔️
%Y-%M-%D_%h:%m:%.3sZ2021-07-27_14:20:32.556Z✔️
%Y-%M-%D %h:%m:%s.%uZ2021-07-27 14:20:32.556000Z✔️
%Y-%M-%D_%h:%m:%s.%uZ2021-07-27_14:20:32.556000Z✔️
%Y-%M-%D %h:%m:%.3sz2021-07-27 14:20:32.556z✔️
%Y-%M-%D_%h:%m:%.3sz2021-07-27_14:20:32.556z✔️
%Y-%M-%D %h:%m:%s.%uz2021-07-27 14:20:32.556000z✔️
%Y-%M-%D_%h:%m:%s.%uz2021-07-27_14:20:32.556000z✔️
%Y-%M-%D %h:%m:%s-00:002021-07-27 14:20:32-00:00✔️
%Y-%M-%D %h:%m:%.3s-00:002021-07-27 14:20:32.556-00:00✔️
%Y-%M-%DT%h:%m:%s-00:002021-07-27T14:20:32-00:00✔️
%Y-%M-%DT%h:%m:%.3s-00:002021-07-27T14:20:32.556-00:00✔️
%Y-%M-%DT%h:%m:%s+08:452021-07-27T23:05:32+08:45✔️✔️
%Y-%M-%DT%h:%m:%s+00:002021-07-27T14:20:32+00:00✔️✔️
%Y-%M-%DT%h:%m:%.3s+00:002021-07-27T14:20:32.556+00:00✔️✔️
%Y-%M-%DT%h2021-07-27T22✔️
%Y-%M-%DT%,1h2021-07-27T22,3✔️
%Y-%M-%DT%.1h2021-07-27T22.3✔️
%Y-%M-%DT%h:%m2021-07-27T22:20✔️
%Y-%M-%DT%h:%,1m2021-07-27T22:20,5✔️
%Y-%M-%DT%h:%.1m2021-07-27T22:20.5✔️
%Y-%M-%DT%h:%m:%s2021-07-27T22:20:32✔️
%Y-%M-%DT%h:%m:%.1s2021-07-27T22:20:32.5✔️
%Y-%M-%DT%h:%m:%.2s2021-07-27T22:20:32.55✔️
%Y-%M-%DT%h:%m:%,3s2021-07-27T22:20:32,556✔️
%Y-%M-%DT%h:%m:%.3s2021-07-27T22:20:32.556✔️
%Y-%M-%DT%h:%m:%s,%u2021-07-27T22:20:32,556000✔️
%Y-%M-%DT%h:%m:%s.%u2021-07-27T22:20:32.556000✔️
%Y-%M-%DT%hZ2021-07-27T14Z✔️
%Y-%M-%DT%,1hZ2021-07-27T14,3Z✔️
%Y-%M-%DT%.1hZ2021-07-27T14.3Z✔️
%Y-%M-%DT%h:%mZ2021-07-27T14:20Z✔️
%Y-%M-%DT%h:%,1mZ2021-07-27T14:20,5Z✔️
%Y-%M-%DT%h:%.1mZ2021-07-27T14:20.5Z✔️
%Y-%M-%DT%h:%m:%,3sZ2021-07-27T14:20:32,556Z✔️
%Y-%M-%DT%h:%m:%s,%uZ2021-07-27T14:20:32,556000Z✔️
%Y-%M-%DT%h%Z2021-07-27T22+08✔️
%Y-%M-%DT%,1h%Z2021-07-27T22,3+08✔️
%Y-%M-%DT%.1h%Z2021-07-27T22.3+08✔️
%Y-%M-%DT%h:%m%Z2021-07-27T22:20+08✔️
%Y-%M-%DT%h:%,1m%Z2021-07-27T22:20,5+08✔️
%Y-%M-%DT%h:%.1m%Z2021-07-27T22:20.5+08✔️
%Y-%M-%DT%h:%m:%s%Z2021-07-27T22:20:32+08✔️
%Y-%M-%DT%h:%m:%.1s%Z2021-07-27T22:20:32.5+08✔️
%Y-%M-%DT%h:%m:%.2s%Z2021-07-27T22:20:32.55+08✔️
%Y-%M-%DT%h:%m:%,3s%Z2021-07-27T22:20:32,556+08✔️
%Y-%M-%DT%h:%m:%.3s%Z2021-07-27T22:20:32.556+08✔️
%Y-%M-%DT%h:%m:%s,%u%Z2021-07-27T22:20:32,556000+08✔️
%Y-%M-%DT%h:%m:%s.%u%Z2021-07-27T22:20:32.556000+08✔️
%Y-%M-%DT%h%Z:%z2021-07-27T22+08:00✔️
%Y-%M-%DT%,1h%Z:%z2021-07-27T22,3+08:00✔️
%Y-%M-%DT%.1h%Z:%z2021-07-27T22.3+08:00✔️
%Y-%M-%DT%h:%m%Z:%z2021-07-27T22:20+08:00✔️
%Y-%M-%DT%h:%,1m%Z:%z2021-07-27T22:20,5+08:00✔️
%Y-%M-%DT%h:%.1m%Z:%z2021-07-27T22:20.5+08:00✔️
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%Y%OT%h%,1m%Z2021208T2220,5+08✔️
%Y%OT%h%.1m%Z2021208T2220.5+08✔️
%Y%OT%h%m%s%Z2021208T222032+08✔️
%Y%OT%h%m%.1s%Z2021208T222032.5+08✔️
%Y%OT%h%m%.2s%Z2021208T222032.55+08✔️
%Y%OT%h%m%,3s%Z2021208T222032,556+08✔️
%Y%OT%h%m%.3s%Z2021208T222032.556+08✔️
%Y%OT%h%m%s,%u%Z2021208T222032,556000+08✔️
%Y%OT%h%m%s.%u%Z2021208T222032.556000+08✔️
%Y%OT%h%Z%z2021208T22+0800✔️
%Y%OT%,1h%Z%z2021208T22,3+0800✔️
%Y%OT%.1h%Z%z2021208T22.3+0800✔️
%Y%OT%h%m%Z%z2021208T2220+0800✔️
%Y%OT%h%,1m%Z%z2021208T2220,5+0800✔️
%Y%OT%h%.1m%Z%z2021208T2220.5+0800✔️
%Y%OT%h%m%s%Z%z2021208T222032+0800✔️
%Y%OT%h%m%.1s%Z%z2021208T222032.5+0800✔️
%Y%OT%h%m%.2s%Z%z2021208T222032.55+0800✔️
%Y%OT%h%m%,3s%Z%z2021208T222032,556+0800✔️
%Y%OT%h%m%.3s%Z%z2021208T222032.556+0800✔️
%Y%OT%h%m%s,%u%Z%z2021208T222032,556000+0800✔️
%Y%OT%h%m%s.%u%Z%z2021208T222032.556000+0800✔️
%Y-%M-%DT%h:%m:%s+082021-07-27T22:20:32+08✔️
%Y-%M-%DT%h-122021-07-27T02-12✔️
%Y-%M-%DT%h-12:002021-07-27T02-12:00✔️
%Y-%M-%DT%h:%m-122021-07-27T02:20-12✔️
%Y-%M-%DT%h:%m-12:002021-07-27T02:20-12:00✔️
Periods
P1YP1Y✔️
P1,5YP1,5Y✔️
P1.5YP1.5Y✔️
P1MP1M✔️
P1WP1W✔️
P1DP1D✔️
PT1HPT1H✔️
P1HP1H✔️
PT1MPT1M✔️
PT1SPT1S✔️
P1SP1S✔️
PT1,5SPT1,5S✔️
PT1.5SPT1.5S✔️
P1Y1MP1Y1M✔️
P1Y1DP1Y1D✔️
P1Y1M1DP1Y1M1D✔️
P1Y1M1DT1H1M1SP1Y1M1DT1H1M1S✔️
P1DT1HP1DT1H✔️
P1MT1MP1MT1M✔️
P1DT1MP1DT1M✔️
P1.5WP1.5W✔️
P1,5WP1,5W✔️
P1DT1.000SP1DT1.000S✔️
P1DT1.00000SP1DT1.00000S✔️
P1DT1H1M1.1SP1DT1H1M1.1S✔️
P1H1M1.1SP1H1M1.1S✔️
Ranges
%Y-%M-%D/P1Y2021-07-27/P1Y✔️
%Y-%M-%D/P1M2021-07-27/P1M✔️
%Y-%M-%D/P1D2021-07-27/P1D✔️
%V-W%W-%w/P1Y2021-W30-2/P1Y✔️
%V-W%W-%w/P1M2021-W30-2/P1M✔️
%V-W%W-%w/P1D2021-W30-2/P1D✔️
%Y-%O/P1Y2021-208/P1Y✔️
%Y-%O/P1M2021-208/P1M✔️
%Y-%O/P1D2021-208/P1D✔️
%Y-%M-%D/%Y-%M-%D2021-07-27/2021-07-27✔️
%Y-%M-%D/%V-W%W-%w2021-07-27/2021-W30-2✔️
%Y-%M-%D/%Y-%O2021-07-27/2021-208✔️
%V-W%W-%w/%Y-%M-%D2021-W30-2/2021-07-27✔️
%V-W%W-%w/%V-W%W-%w2021-W30-2/2021-W30-2✔️
%V-W%W-%w/%Y-%O2021-W30-2/2021-208✔️
%Y-%O/%Y-%M-%D2021-208/2021-07-27✔️
%Y-%O/%V-W%W-%w2021-208/2021-W30-2✔️
%Y-%O/%Y-%O2021-208/2021-208✔️
P1Y/%Y-%M-%DP1Y/2021-07-27✔️
P1Y/%V-W%W-%wP1Y/2021-W30-2✔️
P1Y/%Y-%OP1Y/2021-208✔️
P1M/%Y-%M-%DP1M/2021-07-27✔️
P1M/%V-W%W-%wP1M/2021-W30-2✔️
P1M/%Y-%OP1M/2021-208✔️
P1D/%Y-%M-%DP1D/2021-07-27✔️
P1D/%V-W%W-%wP1D/2021-W30-2✔️
P1D/%Y-%OP1D/2021-208✔️
%Y-%M-%DT%h/P1DT1H2021-07-27T22/P1DT1H✔️
%Y-%M-%DT%h:%m/P1DT1H2021-07-27T22:20/P1DT1H✔️
%Y-%M-%DT%h:%m:%s/P1DT1H2021-07-27T22:20:32/P1DT1H✔️
%Y-%M-%DT%h:%m:%.3s/P1DT1H2021-07-27T22:20:32.556/P1DT1H✔️
%Y-%M-%DT%h:%mZ/P1DT1H2021-07-27T22:20Z/P1DT1H✔️
%V-W%W-%wT%h/P1DT1H2021-W30-2T22/P1DT1H✔️
%V-W%W-%wT%h:%m/P1DT1H2021-W30-2T22:20/P1DT1H✔️
%V-W%W-%wT%h:%m:%s/P1DT1H2021-W30-2T22:20:32/P1DT1H✔️
%V-W%W-%wT%h:%m:%.3s/P1DT1H2021-W30-2T22:20:32.556/P1DT1H✔️
%V-W%W-%wT%h:%mZ/P1DT1H2021-W30-2T22:20Z/P1DT1H✔️
%Y-%OT%h/P1DT1H2021-208T22/P1DT1H✔️
%Y-%OT%h:%m/P1DT1H2021-208T22:20/P1DT1H✔️
%Y-%OT%h:%m:%s/P1DT1H2021-208T22:20:32/P1DT1H✔️
%Y-%OT%h:%m:%.3s/P1DT1H2021-208T22:20:32.556/P1DT1H✔️
%Y-%OT%h:%mZ/P1DT1H2021-208T22:20Z/P1DT1H✔️
P1DT1H/%Y-%M-%DT%hP1DT1H/2021-07-27T22✔️
P1DT1H/%Y-%M-%DT%h:%mP1DT1H/2021-07-27T22:20✔️
P1DT1H/%Y-%M-%DT%h:%m:%sP1DT1H/2021-07-27T22:20:32✔️
P1DT1H/%Y-%M-%DT%h:%m:%.3sP1DT1H/2021-07-27T22:20:32.556✔️
P1DT1H/%Y-%M-%DT%h:%mZP1DT1H/2021-07-27T14:20Z✔️
P1DT1H/%V-W%W-%wT%hP1DT1H/2021-W30-2T22✔️
P1DT1H/%V-W%W-%wT%h:%mP1DT1H/2021-W30-2T22:20✔️
P1DT1H/%V-W%W-%wT%h:%m:%sP1DT1H/2021-W30-2T22:20:32✔️
P1DT1H/%V-W%W-%wT%h:%m:%.3sP1DT1H/2021-W30-2T22:20:32.556✔️
P1DT1H/%V-W%W-%wT%h:%mZP1DT1H/2021-W30-2T14:20Z✔️
P1DT1H/%Y-%OT%hP1DT1H/2021-208T22✔️
P1DT1H/%Y-%OT%h:%mP1DT1H/2021-208T22:20✔️
P1DT1H/%Y-%OT%h:%m:%sP1DT1H/2021-208T22:20:32✔️
P1DT1H/%Y-%OT%h:%m:%.3sP1DT1H/2021-208T22:20:32.556✔️
P1DT1H/%Y-%OT%h:%mZP1DT1H/2021-208T14:20Z✔️
R/%Y-%M-%D/P1YR/2021-07-27/P1Y✔️
R/%V-W%W-%w/P1YR/2021-W30-2/P1Y✔️
R/%Y-%O/P1YR/2021-208/P1Y✔️
R/%Y-%M-%D/%Y-%M-%DR/2021-07-27/2021-07-27✔️
R/%Y-%M-%D/%V-W%W-%wR/2021-07-27/2021-W30-2✔️
R/%Y-%M-%D/%Y-%OR/2021-07-27/2021-208✔️
R/%V-W%W-%w/%Y-%M-%DR/2021-W30-2/2021-07-27✔️
R/%V-W%W-%w/%V-W%W-%wR/2021-W30-2/2021-W30-2✔️
R/%V-W%W-%w/%Y-%OR/2021-W30-2/2021-208✔️
R/%Y-%O/%Y-%M-%DR/2021-208/2021-07-27✔️
R/%Y-%O/%V-W%W-%wR/2021-208/2021-W30-2✔️
R/%Y-%O/%Y-%OR/2021-208/2021-208✔️
R10/%Y-%M-%D/P1YR10/2021-07-27/P1Y✔️
R10/%V-W%W-%w/P1YR10/2021-W30-2/P1Y✔️
R10/%Y-%O/P1YR10/2021-208/P1Y✔️
R10/%Y-%M-%D/%Y-%M-%DR10/2021-07-27/2021-07-27✔️
R10/%Y-%M-%D/%V-W%W-%wR10/2021-07-27/2021-W30-2✔️
R10/%Y-%M-%D/%Y-%OR10/2021-07-27/2021-208✔️
R10/%V-W%W-%w/%Y-%M-%DR10/2021-W30-2/2021-07-27✔️
R10/%V-W%W-%w/%V-W%W-%wR10/2021-W30-2/2021-W30-2✔️
R10/%V-W%W-%w/%Y-%OR10/2021-W30-2/2021-208✔️
R10/%Y-%O/%Y-%M-%DR10/2021-208/2021-07-27✔️
R10/%Y-%O/%V-W%W-%wR10/2021-208/2021-W30-2✔️
R10/%Y-%O/%Y-%OR10/2021-208/2021-208✔️

Format Key


%L - Millennium
%C - Century
%X - Decade
%Y - Year
%M - Month
%D - Day
%V - Week Year
%W - Week
%w - Week Day
%O - Ordinal Day

%h - Hour %m - Minute %s - Second %u - Microsecond

%Z - Zone Hour including +/- %z - Zone Minute

%[,.]3x - Value including fraction with given precision, using either comma or dot. %−Z - Use U+2212 for negative timezone hours