How can I get the current time as an LDAP timestamp in Unix?

Question

I want to be able to generate an ActiveDirectory LDAP timestamp in Unix for some tests I need to run. Active Directory stores date/time values as the number of 100-nanosecond intervals that have elapsed since the 0 hour on January 1, 1601 until the date/time that is being stored.

How can I do I get the current time in this format?

Answer 1

In the terminal:

echo $((($(date +%s) + 11644473600) * 10000000))

Detailed explanation:

• date +%s gets the current time in seconds since 1970.
• 11644473600 seconds elapsed from 1601 to 1970.
• 10000000 is the conversion from seconds to 100-nanoseconds.