How to convert date format on view? I have created a View. Its display format is grid.One of field is Time. 

It is displayed as "Time: 1300". I need to get it printed as "Time: 1:00 pm".
I am using Room Reservations module and in my reservations tab time is displayed.

Can it be done with GUI or code needs any modification?
To convert date format in Views, you have to go the settings field which you are added to view. In settings, there is a Date Format select list field. You can choose the default time format provided or you can make your  custom date format by selecting the Custom from select list. A new textfield will appear "Custom Date Format". In this field, you can make your own custom date format using the link PHP Manual link provide in the description of this field.