you have to toggle your led at the correct place in the loop
the interrupt runs at 4x the speed required (because of high fosc not chip type ) for timing so the post scaler divides it by 4


ClockCount:
@ RELOAD_TIMER ; Reload TIMER1

T1Post = T1Post + 1
Robert toggle your pin here eg latd.0=!latd.0 for 2.5mS
IF T1Post = T1PS THEN
T1Post = 0
Ticks = Ticks + 1
Robert toggle your pin here eg latd.1=!latd.1 for 10mS
IF Ticks = 100 THEN
Ticks = 0
Seconds = Seconds + 1
SecondsChanged = 1
IF Seconds = 60 THEN
Seconds = 0
Minutes = Minutes + 1
MinutesChanged = 1
ENDIF
IF Minutes = 60 THEN
Minutes = 0
Hours = Hours + 1
HoursChanged = 1
ENDIF
IF Hours = 24 THEN
Days = Days + 1
DaysChanged = 1
Hours = 0
ENDIF
ENDIF
ENDIF
@ INT_RETURN ; Restore context and return from interrupt