The phrase "a final hour of" is correct and usable in written English.
It can be used to refer to the last hour of a specific event, period, or activity, often implying a sense of urgency or conclusion.
Example: "As the clock struck midnight, we entered a final hour of reflection before the new year began."
Alternatives: "the last hour of" or "the concluding hour of".
A comeback in the final hour of trading on Wednesday helped pull the Dow Jones industrial average nearly back to unchanged after it fell nearly 200 points earlier in the day.
Still recovering from the absolute WORST New Year's Eve broadcast in my life!?! @nbc @CarsonDaly @chrissyteigen What a waste of my final hour of 2018!
Right away, they joined hands with their coaches and danced in a gigantic circle as if it they were in the final hour of a particularly rowdy wedding.
Haddin's dismissal brought in the local hero Johnson and, in the final hour of a long day, he and Smith added a further 69, seeing off seven overs of a rather placid new ball in the process.
The Dow Jones industrial average erased a 0.8percentt loss in the final hour of trading, rising 31.62 points, or 0.3percentto to 10,158.56.
Like the conversation in the final hour of a boozy art opening, these small anecdotal essays mix gossip, profundity, bogosity and lecherousness in equal parts.
Colchester manager John Ward told BBC Essex: "We've floundered a little bit in the final hour of the game.
Traders on Thursday realized that the fight isn't over until the final bell as a late rally in the final hour of trading caused the Dow to gain more than 175 points, significantly trimming back the day's losses.
Clarke was dismissed for just 23 as Australia slumped from 161-3 to 164-6 in the final hour of a relentlessly tense day, leaving teenage debutant Ashton Agar and vice-captain Brad Haddin battling on a pitch offering significant turn.
Those other security measures apparently include not being allowed to get up in the final hour of a flight (so, no bathroom), being limited to one carry-on bag, and not being allowed to have anything on your lap in this final hour.
