General explanation of the syntax used for commands
duration
parameter, you format it as a number followed by a unit. The unit can be one of the following:
s
for seconds ; m
for minutes ;
h
for hours ;
d
for days ;
w
for weeks.
For example, 5d
stands for five days, and 1w
stands for one week. You can also combine them — 1w3d
means one week and three days.