Interpret a UUID

Back

UUID: 
Your input:                      f9e72831-8305-8a02-87ea-5ce32bd83b97

Various notations:

URN:                             urn:uuid:f9e72831-8305-8a02-87ea-5ce32bd83b97
URI:                             uuid:f9e72831-8305-8a02-87ea-5ce32bd83b97
Microsoft GUID syntax:           {F9E72831-8305-8A02-87EA-5CE32BD83B97}
C++ struct syntax:               { 0xf9e72831, 0x8305, 0x8a02, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.332178006743878939449964146413272578967
As OID (Microsoft):              1.2.840.113556.1.8000.2554.63975.10289.33541.35330.34794.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.18007405828180904450.9793742470433487767
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.4192675889.2198178306.2280283363.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.63975.10289.33541.35330.34794.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0xf9e728318305a0207ea5ce32bd83b97]
Custom data block1 (32 bit):     [0xf9e72831]
Custom data block2 (16 bit):     [0x8305]
Custom data block3 (12 bit):     [0xa02]
Custom data block4 (14 bit):     [0x07ea]
Custom data block5 (48 bit):     [0x5ce32bd83b97]

Interpretation of HickelSOFT "SQL Server Sortable Custom UUID", Version 3

Random 16 bits:                  [0xf9e7] 0b1111100111100111
Milliseconds:                    [0x28] 157 (deviation -2ms..2ms)
Seconds:                         [0x31] 49
Minute of day:                   [0x0583] 1411 (23:30)
Day of year:                     [0x02a] 42 (Day=11, Month=2)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7ea] 2026
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2026-02-11 23:30:49'157 (deviation -2ms..2ms)