When the timer ends

Hide the timer removes it, which is usually right for a sale that is over. Show a message instead puts one line in its place — the message is already in the page, hidden, so it appears even if the script never runs. Leave the timer at zero keeps the clock showing 00. Go to another page sends a visitor who watches the timer reach zero to the Page address you give — the next offer, say — once. Nobody who arrives after the end is sent anywhere, and a timer in a shop listing never sends anyone away from the grid. Nor does a sale timer on a variable product: one variation's sale ending leaves the others on sale, so that timer only hides.

A daily or weekly cut-off never ends, so it does not ask: it moves on to the next cut-off.