How can I change the time format in Zoho Mail?

How can I change the time format in Zoho Mail?

Hi,

I would like to know if it is possible to change the time format to 24 hour format instead of 12 hours when I look at all my emails? 

When I open an email it does show 24 hour format, but the timezone is then incorrect. In the options I have selected the correct timezone. I am based in the Netherlands.

Thanks for any suggestions.