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On his last few days is the most popular phrase on the web.

in his last few days 1317,000 results on the web	On his last few days 12,020,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
They've been doing repairs these last few days. These last few days have been an unexpected gift. A lot's changed in the last few days. She's been wandering around these last few days. It's been strange not having you around these last few days. I'd like you two to piece together a picture of his last few days. I just wanted these last few days. For making him happy these last few days.	I've felt it again though, these last few days with you on my heels. I'd like you two to piece together a picture of his last few days. I need your help understanding what's been going on the last few days. And it's unlikely he would still have trace amounts of pollen on him unless he had been in the Yucatán sometime in the last few days. I don't know how fully briefed you are on what's happened here for the last few days. Something's been going on with him the last few days. Mr President, the Parliament's committees on which I sit have in the last few days made important progress with legislation on both financial services and energy market liberalisation. Don't bother, he's been on moon last few days.

in his last few days

1317,000 results on the web

On his last few days

12,020,000 results on the web

More popular!

I've felt it again though, these last few days with you on my heels.
I'd like you two to piece together a picture of his last few days.
I need your help understanding what's been going on the last few days.
And it's unlikely he would still have trace amounts of pollen on him unless he had been in the Yucatán sometime in the last few days.
I don't know how fully briefed you are on what's happened here for the last few days.
Something's been going on with him the last few days.
Mr President, the Parliament's committees on which I sit have in the last few days made important progress with legislation on both financial services and energy market liberalisation.
Don't bother, he's been on moon last few days.