late in the day

US /leɪt ɪn ðə deɪ/
UK /leɪt ɪn ðə deɪ/
"late in the day" picture
1.

too late to be effective or useful

:
The decision to change the strategy came late in the day, after most of the damage was done.
It's a bit late in the day to start worrying about the deadline now.