Interpret a UUID

Back

UUID: 
Your input:                      c457960d-4f04-8501-87ea-5ce32bd83b97

Various notations:

URN:                             urn:uuid:c457960d-4f04-8501-87ea-5ce32bd83b97
URI:                             uuid:c457960d-4f04-8501-87ea-5ce32bd83b97
Microsoft GUID syntax:           {C457960D-4F04-8501-87EA-5CE32BD83B97}
C++ struct syntax:               { 0xc457960d, 0x4f04, 0x8501, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.260983460416397481110975744952266931095
As OID (Microsoft):              1.2.840.113556.1.8000.2554.50263.38413.20228.34049.34794.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.14147941738312140033.9793742470433487767
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.3294074381.1325696257.2280283363.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.50263.38413.20228.34049.34794.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0xc457960d4f0450107ea5ce32bd83b97]
Custom data block1 (32 bit):     [0xc457960d]
Custom data block2 (16 bit):     [0x4f04]
Custom data block3 (12 bit):     [0x501]
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:                  [0xc457] 0b1100010001010111
Milliseconds:                    [0x96] 588 (deviation -2ms..2ms)
Seconds:                         [0x0d] 13
Minute of day:                   [0x044f] 1103 (18:22)
Day of year:                     [0x015] 21 (Day=21, Month=1)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7ea] 2026
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2026-01-21 18:22:13'588 (deviation -2ms..2ms)