ATCOM AT840 User Manual page 28

AT840 Series User Manual
Date And Time

NTP

NTP Server: Network time protocol service, default is pool.ntp.org.

Time Zone: Choose your own time zone.

Daylight Saving Time: whether to enable Daylight saving time.

Daylight Saving Time Rule: This parameter is a rule with three fields, each field is separated

by semicolon; as show below:
Start=<start-time>; end=<end-time>; save=<save-time>
<start-time> and <end-time> specify the start and end date of daylight saving time,
month/date/weekand <save-time> is the amount of hour/min/sec to add to the current time
during daylight saving period. The <save-time> value can be preceded by a negative (-) sign if
subtraction is desired instead of addition.
If <weekday > is 0, it means the date to start or end daylight saving is at exactly the given date.
In that case, the <day> value must not be negative. If<weekday >is not zero, then the daylight
saving starts or ends on the <weekday >on or after the given date if <day> is positive, or on or
before the given date if <day> is negative. If <day> is -1, it means the <weekday> on or before
the end-of-the –month (in other words the last occurrence of <weekday> in that month)
Optional values inside [] are assumed to be 0 if they are not specified. Midnight means 0:0:0 of
the given date.
E.G. start=4/1/7/8:00:00;end=10/1/7/9:00:00;
save=-1Start time is 1st April, Sunday, 8:00:00 am.
End time is 1st October, Sunday, 9:00:00 am.
The display time will be one hour early than the standard time.
Manual

Set Local Date(YYYY/mm/dd): manually set local date: year/month/day

Set Local Time(HH:mm:ss) : manually set local time: hour/minute/second

NAM TRUONG GIANG
www.lapdattongdaidienthoai.com
29