Summer time, Winter Time and aftermath

[Acidstorm]

Hello,

Firstly, excuse me for my bad english language, it's not my native language. I'm a frenchman.

Secondly, how is managed the summer and winter time in Cacti ? How to solve this problem ? to put the server and php timezone to Greenwich (GMT) to solve the problem ?

The server is in France (GMT +1) and I have a hole between 02:00 AM and 02:30 AM (after the schedule change, summer time to winter time).

Timezone - Operating System (OpenBSD 5.5) : Europe/Paris
Timezone - PHP 5.4 (php-5.4.ini) : date.timezone = Europe/Paris
Timezone - MySQL (@@global.time_zone) : SYSTEM
Cacti version : 0.8.8b

Our server is synchronized with our router via NTP.

Screenshot Aftermath (summer time to winter time) : see attached files

[cigamit]

You would have to use GMT to fix it, Cacti stores the data based upon PHP's Timezone. For that time zone, 2:15 am did not exist.

[BSOD2600]

I thought rrdtool handles this internally http://www.vandenbogaerdt.nl/rrdtool/timezone.php

[cigamit]

Ya, after more digging, it seems to go off the TZ variable of the system and does store it in UTC, but the gap is going to occur because your local time zone that it is displaying it in skipped that hour.

[Acidstorm]

Many thanks to all for your responses.