Each server records the time and date in theemail header.
Review Date and Time Information
In the email’s header, look for lines beginning withDateandReceived.
Compare these areas to get an idea of how long the message took to arrive in your inbox.

The process for showing an email’s header is simple but varies slightly among email clients.
For example, from an openGmailmessage, clickShow Original.
InOutlook, go toFile>Properties.
Deciphering Time Zones
The most difficult parts to understand are the time and time zone offset.
To convert the time to your time zone, use atime zone calculator.