Turn off and connect the camera to your PC or iMac via the USB cable, it will go into U-disc mode. Open the Micro SD card, create a RTF file in it, and rename it to “Time.TXT”. The suffix of the file is TXT.
Open the TXT file, type in the time as following format and then save the file:
[Year/Month/Date]<A space is required>[Hour:Minute:Second]
2016/06/01 12:00:00Then, disconnect the camera from your iMac, turn it on, the camera will automatically sync the time.