The four-day cease-fire in Gaza entailed an increased flow of aid trucks carrying relief supplies and fuel into Gaza through the Rafah border crossing.
The apparent lapse between the entry and departure points of this motion appears then as a convenient measurement within the system, that is referred to within your system as time.
On Sunday, eight trucks entered the besieged territory for the first time through the Kerem Shalom crossing with Israel but humanitarian agencies say significantly more assistance is needed.