You can adjust how the date and time emails are received is shown in Webmail.

1) Summary date style OR

2) The date and time can be set to always be shown

To change the date and time style:

1. Select the app selector  (top left of Webmail).
2. Select Settings
   
   
   
   
3. Select Mail
   
   
   
   
4. Toggle the Always display date and time in Message List to suit your preference