broadcast "&c%player% &7has activated a booster! &f( &730 Minutes Left! &f)"
wait 30 minutes
YOU'VE DONE IT NOW.
set {booster::lasting} to 30 minutes
set {booster::started} to now
every second:
if difference between {booster::started} and now > {booster::lasting}:
delete {booster::*}
send "booster over, get on with it" to all players