about this time; around now
Refers to a time around the present moment or a specified time, often with a nuance of expectation or contrast with what is happening now. Can be used as a noun or adverb.
今頃はもう家に着いているはずだ。
He should be home by now.
Around this time last year it was still cold.
You're apologizing now? (It's a bit too late.)
He's probably at the airport by now.
I only just now noticed the mistake.