IC Realtime Max Series: 4/8/16 Channel D1 1.5U Standalone DVR - Manual (Page 156)

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are two options: stop recording or rewrite. If current working HDD is
overwritten or the current HDD is full while the next HDD is no
empty, then system stops recording, If the current HDD is full and
then next HDD is not empty, then system overwrites the previous
files.
Pack
duration
Here is for you to specify record duration. The value ranges from 1
to 120 minutes. Default value is 60 minutes.
7.8.5.1.2 Date and time
The date and time interface is shown as in Figure 7-65
Figure 7-65
Please refer to the following sheet for detailed information.
Parameter Function
Date format Here you can select date format from the dropdown list.
Time
Format
There are two options: 24-H and 12-H.
Time zone
The time zone of the device.
System
time
It is to set system time. It becomes valid after you set.
Sync PC You can click this button to save the system time as your PC current
time.
DST Here you can set day night save time begin time and end time. You
can set according to the date format or according to the week
format.
NTP You can check the box to enable NTP function.
NTP server You can set the time server address.
Port
It is to set the time server port.
Interval
It is to set the sync periods between the device and the time server.
7.8.5.1.3 Holiday Setup
Holiday setup interface is shown as in Figure 7-66.