If you wish to display time in a Pop-up window then use the following function module.
F4_CLOCK
The user can select the desired time and the result is exported in one of the parameters.Please find the code below.
REPORT ZEX_TIME .
Data: d_time like sy-uzeit.
CALL FUNCTION 'F4_CLOCK'
EXPORTING
START_TIME = SY-UZEIT
DISPLAY = ' '
IMPORTING
SELECTED_TIME = d_time.
Write:/ 'The selected time is ', d_time.
Data: d_time like sy-uzeit.
CALL FUNCTION 'F4_CLOCK'
EXPORTING
START_TIME = SY-UZEIT
DISPLAY = ' '
IMPORTING
SELECTED_TIME = d_time.
Write:/ 'The selected time is ', d_time.