In some WATCHNET actions it is possible to enter a time (in eg. the Wait action). In order to set a longer time than 59 seconds you must format the time in a certain way.
Time in WATCHNET is formatted in the same way as it is in WATCHOUT (<hours:minutes:seconds.milliseconds>)
I you simply put in numbers you are going to set a timer using seconds which, due to the formatting of the time, will max out at 59 seconds.