How to query an object using an attribute whose datatype is time in edirectory ?
useronboardtime = Aug 17, 2020 5:43:24 PM IST (20200817121324Z)
The example you posted looks like the LDAP interpretation of a time string. For the IDM engine, you need to use CTIME. You can convert one to the other as needed.
In IDM Policy (DirXML Script) you can only query for the exact value, in CTIME as David suggested. I do not think wildcards are supported.
If you use LDAP in ECMA in your driver,, you can query for a lesser than or equal/greater than or equal timestamp to get something within a date range.