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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
available hour
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "available hour" is correct and usable in written English.
It can be used to refer to a specific time slot that is open or free for an appointment or meeting. Example: "Please let me know your available hour so we can schedule a meeting."
✓ Grammatically correct
News & Media
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
5 human-written examples
Nadal said that, in Melbourne, he had been giving the testing agencies his hotel location and listing his available hour as between 7 a.m. and 8 a.m.
News & Media
This could be owing to non-farm activity operators would have the less available hour to allocate their labour resource for food crop production purposes.
Therefore, theft was further standardised, by passenger numbers per million journeys, and per available hour of risk, and the results are presented in Figure 6.
Science
He tells stories of spending every available hour digging out back, building forts, burying treasure, and tinkering with little inventions.
News & Media
For every other available hour, all nearby conference rooms or halls are filled with fringe meetings organised by different groups buzzing around the party, from 8AM breakfast meetings to 8PM rallies to receptions to midnight debates.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
This means your available hours now stand at 91,167.
News & Media
Peripatetic and private teaching is irregular in terms of both salary and available hours.
News & Media
As well as winning 99% of the available hours in the WoCC, they dominated entertainment (90%) and children's (81%) commissioning.
News & Media
Figure 6 Theft on the London Underground by time of day (standardised by passenger volumes and available hours in each time period).
Science
The fault dip and seismic moment are in remarkable agreement with the GCMT solution (http://www.globalcmt.org) that was available hours later.
Science
Formal CXR reports dictated by attending radiologists are typically available hours to days later, with the dictated CXR report being considered the 'reference standard' test for statistical comparison.
Science
Expert writing Tips
Best practice
When scheduling meetings or appointments, use "available hour" to clearly define a one-hour window of time. This avoids ambiguity and helps ensure the other party understands the time commitment.
Common error
Avoid using "available hour" when you mean general availability. "Available hour" refers to a specific one-hour time slot, not your overall capacity to take on tasks or appointments.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "available hour" functions primarily as a noun phrase, where "available" modifies the noun "hour". It indicates a specific, accessible time slot. Ludwig suggests that this is an acceptable and usable phrase.
Frequent in
News & Media
60%
Science
40%
Formal & Business
0%
Less common in
Academia
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "available hour" is a grammatically sound way to refer to a specific one-hour time slot that is free or accessible. Ludwig confirms its correctness and usability. While relatively rare in occurrence, it is most frequently found in News & Media and Scientific contexts. When using the phrase, ensure clarity by specifying a precise time or purpose to prevent confusion with general availability. Alternative phrases such as "free hour" or "open hour" can be used for similar meanings. Overall, "available hour" is a suitable choice for clearly indicating a one-hour window, particularly for scheduling or resource allocation purposes.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
free hour
Replaces "available" with "free", indicating an unoccupied time slot.
open hour
Substitutes "available" with "open", suggesting a time slot that is not booked.
unscheduled hour
Emphasizes that the hour has no prearranged activities.
vacant hour
Implies the hour is empty and ready to be used.
spare hour
Highlights that the hour is extra or unused.
free time slot
Uses "time slot" instead of "hour" to broaden the term.
open time slot
Combines "open" with "time slot" for clarity.
available time
Replaces "hour" with the broader term "time", suggesting a less specific period.
an hour free
Reorders the words to emphasize the freedom of the hour.
unbooked hour
Highlights the hour is not yet reserved.
FAQs
How can I ask about someone's availability without using "available hour"?
You can ask "What "time are you free"?", "When are you "available"?" or "What's your "availability" like this week?"
Is it better to say "available hour" or "free hour"?
Both "available hour" and "free hour" are acceptable. "Free hour" is perhaps slightly more informal, but both clearly convey the meaning of a one-hour time slot that is not occupied.
Can "available hour" refer to a partial hour?
While technically "available hour" refers to a full 60 minutes, in some contexts, it can be used loosely to mean a portion of an hour. It's best to be specific if you only need part of an hour.
What's the difference between "available hour" and "working hours"?
"Available hour" refers to a specific one-hour slot within a larger timeframe. "Working hours" refers to the total period someone is working and "available" for tasks.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested