Hi @Lisa Goldman
The variable is Date/Time based then there is no direct option for changing the format ( HH:mm:ss) and not recommended to change it.
There is a system property ( glide.sys.time_format ) for time format , any change will impact globally.
Refer below thread for similar requirement
https://www.servicenow.com/community/developer-forum/is-it-possible-to-remove-seconds-from-the-date-...
https://www.servicenow.com/community/itsm-forum/i-need-to-remove-the-seconds-for-date-and-time-field...
Refer below for some custom approach to make second field as 00.
https://www.servicenow.com/community/developer-forum/how-to-set-seconds-in-datetime-at-00-value-in-b...
-Thanks,
AshishKMishra
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