> For the complete documentation index, see [llms.txt](https://docs.korewireless.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.korewireless.com/kore/errors/83602.md).
# 83602
Request StartTime and/or EndTime must be aligned to UTC hour boundaries.
## Description
Certain requests for Usage Records can only be made with StartTime and EndTime parameters that align to a UTC hour cutoff (e.g. "2021-07-15T04:00:00Z").
## Possible Causes
* This happens if you request Usage Records with StartTime or EndTime parameters that do not fall on an hour cutoff for certain UsageRecord requests.
## Possible Solutions
* Adjust your StartTime or EndTime parameters so that they are on a UTC hour cutoff (e.g. "2021-07-15T04:00:00Z").
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