Unhelpful error message for future dates

[jorrit]

Instead of the latest endpoint, I call the API with the current date. In this way, I get the same rates throughout the day, in case something happens to the cache. I used the current day in UTC+2 (my timezone) and it seems the API uses UTC, so for the first two hours of each day I receive an error. I'll fix this on my side, but I just wanted to mention that the error is unhelpful:

URL: http://data.fixer.io/api/2021-09-10?access_key=xxxxx&format=1&base=EUR

{
  "success":false,
  "error":{
    "code":302,
    "type":"invalid_date",
    "info":"You have entered an invalid date. [Required format: date=YYYY-MM-DD]"
  }
}

The date format is fine, it's just that the date is in the future, as seen from UTC+0.
I think this situation warrants a separate error message, one which also indicates the timezone of the API server.