Looking on the internet deeply has found these results:

yesterday afternoon is the most popular phrase on the web.

last afternoon 120,400 results on the web	yesterday afternoon 112,900,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Jun 3, 2012 ... ... to London yesterday morning. I ask because it is supposedly correct to say 'last night'. Why don't we say 'last afternoon' or 'last morning'? This item: On the Occasion of My Last Afternoon: A Novel by Kaye Gibbons Paperback $12.50. Divining Women (P.S.) by Kaye Gibbons Paperback $5.58. Home > Poems & Poets > My Last Afternoon with Uncle Devereux Winslow. POEM; RELATED CONTENT Discover this poem's context and related poetry. Can I properly say "She was at home yesterday/last afternoon"? and ... We never say last morning, last lunchtime, last afternoon or last evening.	Around 3:00 yesterday afternoon. I really appreciated your help yesterday afternoon. Following these initial missions I went myself to Belgrade on Monday and yesterday afternoon I visited Podgorica. You were supposed to be with Tom yesterday afternoon. You were supposed to be with Tom yesterday afternoon. The guard found Cullen unconscious yesterday afternoon. We must now endeavour to flesh out the policy areas identified yesterday afternoon. Tom had a lot of work to do yesterday afternoon.

last afternoon

120,400 results on the web

yesterday afternoon

112,900,000 results on the web

More popular!

Jun 3, 2012 ... ... to London yesterday morning. I ask because it is supposedly correct to say 'last night'. Why don't we say 'last afternoon' or 'last morning'?
This item: On the Occasion of My Last Afternoon: A Novel by Kaye Gibbons Paperback $12.50. Divining Women (P.S.) by Kaye Gibbons Paperback $5.58.
Home > Poems & Poets > My Last Afternoon with Uncle Devereux Winslow. POEM; RELATED CONTENT Discover this poem's context and related poetry.
Can I properly say "She was at home yesterday/last afternoon"? and ... We never say last morning, last lunchtime, last afternoon or last evening.

Around 3:00 yesterday afternoon.
I really appreciated your help yesterday afternoon.
Following these initial missions I went myself to Belgrade on Monday and yesterday afternoon I visited Podgorica.
You were supposed to be with Tom yesterday afternoon.
You were supposed to be with Tom yesterday afternoon.
The guard found Cullen unconscious yesterday afternoon.
We must now endeavour to flesh out the policy areas identified yesterday afternoon.
Tom had a lot of work to do yesterday afternoon.