In earlier Litespeedversions the timeformat for the backup file was HHMM, in the latest versions it has been changed to HHMMSS, for example:
model_Full_20100330_0130.bak has now become
Can the changed time format for the backup files set back from HHMMSS to HHMM, the same format as previous versions?
The format for the time format itself (HHMMSS) cannot be reverted.
Enhancement request CR72756 has been submitted to Development for consideration in future release of Litespeed for SQL Server.