UTC 00:00 time is at Greenwich. My guess here is your locality is 2 hours different to UTC. +2 perhaps Central European Summer Time

Why does Tbird read the time different? Received time according to my settings and Greenwich when I forward the mail? I would like to have it in the same format. Lars

The date in a received email is the date when the sender sent the email as per their computer settings. This date is shown in the header of the actual email - if you show full headers then it can be seen or if you use More > View Source It is also shown when you click on 'forward' because the email header info is included.

The date shown in the Thunderbird 'Date' column will show the equivalent date/ time which is taken from your computer settings.

Why? Because people all over the world live in different timezones. An email composed and sent by someone in a different timezone to you will show a difference in equivalent time.

Example: I receive an email which was sent from someone living in Thailand In the email headers the date the email was sent:

• Mon, 20 Feb 2017 10:49:03 +0700

The sender is living in a timezone 7 hours ahead of me. I live in the UK. In the 'Date' column and the 'Date' shown the header area of Message Pane is:

• 20/07/2017, 3:49AM

If you add on the 7 hours then it will be the same. At the time the email was sent, in the UK it was 3:49AM and at same moment in Thailand it was 10:49AM

So in your case: The email was sent by person whose computer was set up using GMT/UTC +0000 They sent the email : Fri, 9 Sep 2022 12:45 PM +0000 That date is in the email headers and is shown when you view the source or display full headers or can be seen when you click on 'Forward' as the email headers are copied over to new Write window.

In the 'Date' column you will see the equivalent time according to whatever you have set up on your computer. It is showing a time of 14:45PM UTC +2000 Therefore I assume you are living in a timezone which is UTC + 2 hours.

If you enable the 'Received' column you will also see the dates when last server received email.

In the full headers you can see how the email is passed from server to server on it's way to you. The top one is the last one, so you need to look at the lowest one for the starting location. The dates recorded by the server will be correct, but if email is crossing timezones you may see different times and it is possible to even see a different day.

So if you want to see the time the sender sent the email as according to the time in their part of the world you need to display full headers to see it. All dates and times displayed in Thunderbird will be your time according to whatever you have set up your computer to use.

re :Received time according to my settings and Greenwich when I forward the mail?

The time you send that email will be the time/date as according to your computer. As you have not sent it yet that date has not been set. The date info in the header of copied email section is specific to when the fowarded email was originally composed and sent by sender. It is not the date/time which will be used when you actually send that email.

Generally, it is advised you completely remove the header data in a forwarded email because the original sender may not be happy about you forwarding their personal email details. But there are occasions when that data is relevant and required.