Yes, SearchBlox does support date-range-based searching in search servlet.
The syntax for the date range functionality is as shown below:
where the start date is the start date, the end date is the end date, and the start date < enddate.
The format for the startdate and enddate is YYYYMMDDHHMMSS where
YYYY is the year (example: 2019)
MM is the month (01 to 12)
DD is the day (01 to 31)
HH is the hour (00 to 23)
MM is the minute (00 to 59)
SS is the second (00 to 59)
The start date and end date search parameters can be used with other available search parameters.