Order duration

Imported from previous forum

In FIX how can I specify Order duration if not want to use ExpiryTime as duration will be in hours/minutes .

FIX field ExposureDuration (1629) together with TimeInForce (59) set to A=“Good For Time”. Duration is to be specified in seconds. This was added with Extension Pack 100 and is part of the FIX 5.0 SP2 extensions.

In FIX how can I specify Order duration if not want to use ExpiryTime as duration will be in hours/minutes .