[Text object timing on slide [SOLVED]]

Thanks Dave - Superb

[Text object timing on slide [SOLVED]]

I wish to add text to a slide. but for the text to appear not at the beginning of its display but several seconds in and then for it to cease displaying after a period..
I have tried to adjust this using the time range boxes.
I can alter the end of the text display but not the beginning.
The time range numbers are confusing can you explain them or point me in the right direction, please?