Yesterday Date (UTC)
Get the previous UTC calendar date without using your device time zone.
Yesterday (UTC)
The result uses the current UTC calendar date.
A QUICK WALKTHROUGH
How to use this tool
- Open the tool.
- Read the previous UTC calendar date.
- Copy the displayed ISO date if needed.
UTC calendar basis
The current date comes from the ISO UTC date, so local midnight and daylight-saving changes do not affect the result.
ISO output
The result is a YYYY-MM-DD calendar date, not a local-time conversion.
Local processing
The date is calculated in your browser; no value is uploaded or stored.
GOOD TO KNOW
Common questions
Which time zone is used?
UTC only. The device time zone is ignored.
Does yesterday mean 24 hours earlier?
No. It means the previous UTC calendar date.