On the service desk I want to add two fields.
I want to add a date and time field for the option 'start'
Also the same again as a date and time field for the option 'end'
And then I want another field which subtract the field from the other.
For Example
START 10/06/2021 15:00
END 10/06/2021 16:00
TOTAL 0 days, 1 hour, 0 minutes 0 seconds
Would you know how to add these fields? I haven't really got the jira knowledge on this.