Interprete a UUID

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UUID: 
Your input:                      7977be0f-2f04-8c13-87e9-5ce32bd83b97

Various notations:

URN:                             urn:uuid:7977be0f-2f04-8c13-87e9-5ce32bd83b97
URI:                             uuid:7977be0f-2f04-8c13-87e9-5ce32bd83b97
Microsoft GUID syntax:           {7977BE0F-2F04-8C13-87E9-5CE32BD83B97}
C++ struct syntax:               { 0x7977be0f, 0x2f04, 0x8c13, { 0x87, 0xe9, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.161458325676938889296972274131034192791
As OID (Microsoft):              1.2.840.113556.1.8000.2554.31095.48655.12036.35859.34793.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.8752673373240462355.9793460995456777111
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.2037890575.788827155.2280217827.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.31095.48655.12036.35859.34793.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0x7977be0f2f04c1307e95ce32bd83b97]
Custom data block1 (32 bit):     [0x7977be0f]
Custom data block2 (16 bit):     [0x2f04]
Custom data block3 (12 bit):     [0xc13]
Custom data block4 (14 bit):     [0x07e9]
Custom data block5 (48 bit):     [0x5ce32bd83b97]

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

Random 16 bits:                  [0x7977] 0b0111100101110111
Milliseconds:                    [0xbe] 744 (deviation -2ms..2ms)
Seconds:                         [0x0f] 15
Minute of day:                   [0x042f] 1071 (17:50)
Day of year:                     [0x13c] 316 (Day=12, Month=11)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7e9] 2025
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2025-11-12 17:50:15'744 (deviation -2ms..2ms)