How to change the time zone in cPanel Webmail (Roundcube)
Login to Webmail using the website link http://yourdomain.com/webmail or http://webmail.yourdomain.com
In sidebar, click on Settings
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Click Preferences and then click User Interface
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Select your time zone from the drop-down list and then click Save button
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In sidebar, click on Settings
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Click Preferences and then click User Interface
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Select your time zone from the drop-down list and then click Save button
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Updated on: 20/09/2021
Thank you!