Valid Start Time of Presenting Card
The property and Valid End Time of Presenting Card can decide to card record and add missed card record for attendance count. Any card record and added missed card record during the time can be considered in attendance count, other records will be neglected.

Under complex attendance, valid end time can be set later than 23: 59 (certain time for next day). The time of presenting card (valid time and starting time) must include all time of shift.

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