Help Center -> Device Management -> Daylight Saving Time

## Daylight Saving Time

DST, also called Daylight Saving Time, is a system that prescribes the local time setting principle in order to save energy. The unified time adopted during the system date is called "DST".

1.DST Adding:

Model 1:

Set as "Month-day hour:minute" format, start time and end time is in need. For example, the start time can be set as "3-11 00:00", when the start time arrives; the system will be one hour forward. When the end time arrives, the system will turn back to the original time.

Mode 2:

Set as "Month-Weeks-week hour:minute" format. The start time and end time is in need. For example, the start time can be set "second Monday in March, 00:00" When the start time arrive, the system will turn back to the original time.

2.DST Using:

The user can enable the DST setting on a device, by the following ways:

In the DST interface, select a DST setting, and click [Daylight saving time setting], select the device which need to a DST setting and click [OK] to confirm.

Otherwise, in the [Access Control] - [Door Configuration] interface, select the device, and click [Enable daylight saving time] or [Disable daylight saving time] for setting.

If a DST setting is in use, the latest modification will be sent to the device. The device disconnect will lead to transmission failure, and it will continue the transmission at the next connection.

In door management module of access control system, you can enable or disable DST function. If you enable DST setting, when the start time arrives, the system will be one hour forward. When the end time arrives, the system will turn back to the original time. If you have not set a DST in the device, when you disable DST, the system will prompt "The daylight saving time hasn't been set in this device".

Note: If a DST setting is in use, it can not be delete, please first stop the DST, and delete it again.