Interpret a UUID

Back

Your input:                      51789d09-8101-8302-87ea-5ce32bd83b97

Various notations:

URN:                             urn:uuid:51789d09-8101-8302-87ea-5ce32bd83b97
URI:                             uuid:51789d09-8101-8302-87ea-5ce32bd83b97
Microsoft GUID syntax:           {51789D09-8101-8302-87EA-5CE32BD83B97}
C++ struct syntax:               { 0x51789d09, 0x8101, 0x8302, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.108293728372888994830737244538608827287
As OID (Microsoft):              1.2.840.113556.1.8000.2554.20856.40201.33025.33538.34794.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.5870614778422067970.9793742470433487767
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.1366859017.2164359938.2280283363.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.20856.40201.33025.33538.34794.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0x51789d09810130207ea5ce32bd83b97]
Custom data block1 (32 bit):     [0x51789d09]
Custom data block2 (16 bit):     [0x8101]
Custom data block3 (12 bit):     [0x302]
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:                  [0x5178] 0b0101000101111000
Milliseconds:                    [0x9d] 615 (deviation -2ms..2ms)
Seconds:                         [0x09] 9
Minute of day:                   [0x0181] 385 (06:24)
Day of year:                     [0x023] 35 (Day=4, 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:                   2026-02-04 06:24:09'615 (deviation -2ms..2ms)