How is the National Day free expressway period calculated?

[LaCassandra]

Expressway toll-free periods are determined by the exit time. During statutory holidays, toll exemptions for passenger vehicles are based on the time of exiting the toll station. If you enter the expressway during a toll period but exit during a toll-free period, no fee will be charged. Conversely, if you enter during a toll-free period but exit during a toll period, the toll will apply. If you cannot exit the expressway by 24:00 on the last day of the toll-free period, you can exit at the nearest toll station just before the toll period begins to avoid charges for the preceding section. Expressways must clearly indicate speed limits for each lane, with maximum speeds not exceeding 120 km/h and minimum speeds not falling below 60 km/h.