peak hour surcharge

one day at around 0930hrs, we boarded a taxi. my mother and i will be going to alexandra hospital for routine checkup.
i have checked our watch and noted it was at 0931hrs that we boarded the cab.

however, we were inside the bab, the fare meter still charged us the peak-hour surchrage. we were confused.

upon reaching the destination, we asked for a receipt and found out the time was actually 0927hrs. the cab's time and our time were different.

i always checked 1711 for the accuracy. since mine was okay, the cab driver must have actually change the time for another 5 minutes for additional sur-charge.

we have been fooled