check time is not in sync with the system time

[mroter]

Our nagios servers are configured to use Europe/London time ("BST") (used to be UTC in the past).
We've verified that the system profile show the correct system & PHP time.
On the other hand the last/next check time for a service is now one hour behind (probably due to DST).
This is an issue since we need to run some services at a specific London local time. We can modify the time period -1h but then we'll have to modify it each time the DST changes.
Please advise why the check time is not in sync with the system time.

[lmiltchev]

What is the output of the following command?

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cat /etc/sysconfig/clock

[mroter]

Zone = "UTC"
so what do we do next?

[abrist]

What did you set as your "localtime" and your php time?

[mroter]

All I changed in the php.ini is the date.timezone
Can you tell me what else I need to change?

[abrist]

You will need to set the system time zone: /etc/localtime

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cp /usr/share/zoneinfo/Europe/London /etc/localtime

If you have access to the internet on your XI system, you should consider using the ntp client as well.

[mroter]

I did that! This is why the system date is ok.
What I need to change on the php.ini?

[slansing]

If the system is showing the correct PHP time to you then you must have it already set correctly, the line which would be changed would be:

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date.timezone

In:

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/etc/php.ini

What timezone did you choose for the php.ini file? Is it a timezone which properly uses DST?

[mroter]

/etc/localtime is set to Europe/London
In the php.ini date.timezone is the same.
Both system time and php time show the correct BST time.
The problem is with Nagious last & next check time that is 1 hour behind (still utc)
Please look back on this thread, somehow the sysconfig show zone=utc

[abrist]

Is the bios clock correct?

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hwclock --show

Is ntp an option?