The phrase "an hour of progress" is correct and usable in written English.
It can be used to describe a period of time during which significant advancements or improvements are made.
Example: "After an hour of progress, we were able to complete the first draft of the report."
Alternatives: "a period of advancement" or "an hour of improvement".
As technical progress made an hour of labour more productive, employers had less reason to resist shorter working hours.
Spend too much time hanging out with your friends earlier in a month, and you may run out of time to complete the case, a system that can force the loss of hours of progress, as you revert to an earlier save.
Players found themselves queueing for as long as 50 minutes, even to play solo, and in some cases had their cities deleted, losing hours of progress.
In the PS4 version we tested, minor issues include NPC allies getting stuck in walls, conversations ending but leaving you stuck in conversation mode, enormous load times when leaving interiors, and inescapable-deathtrap autosaves that ruin several hours of progress.
There's nothing worse than losing hours of progress because your system crashes or the power goes out.
The bakers worked at a rate of 20 metres an hour, their progress complicated by working outdoors in the cold.
To organize his research on the Watts riots, journalist Robert E. Conot sketched out the hour-by-hour progress of events in 1965 on a 25-foot-long stretch of paper, then dressed the diagram in the exhaustive detail for which he became known.
It may be a mark of progress that, as the hour approaches for Candy Crowley to host Tuesday's Obama-Romney debate, there is not too much Internet chatter about her being the first woman to host a presidential debate in two decades.
Both sides projected a sense of progress after the three-hour meeting, half of which Mr. Olmert and Mr. Abbas spent in a private tête-à-tête.
