/^([0-9]+)\.([0-9]+)\s+date\s+(\d\d(\d\d)?(\.\d\d){5}?);$/o

##</code><code>##

(\.\d\d){5}?;

##</code><code>##

((\.\d\d){5})?;

##</code><code>##

.01.02.03.04.05;

##</code><code>##

;