I have started to harden off my seedlings with the intention of
planting them this weekend.

I don't have access to a cold frame some I've just put them outside
near the conservatory on the deck.

As I work during the day I put them out this morning and will bring
them in when I get home.

Is this a safe way of doing it ?
Will several days of doing this be sufficient to allow me to plant them
out this weekend ?

Cheers

Colin