Netcdf files with time unit in the form "s since 2021-01-29 01:00:00.000 UTC" (with the explicit name of UTC timezone) throw this error:
While trying to parse the date of the NetCDF-CF "units" strings since 2021-01-29 01:00:00.000 UTC, the following error occurred: The given string 2021-01-29 01:00:00 UTC does not agree with any of the supported format styles.
Although probably not compliant with unidata UDUNITS. the unidata netcdf lib itself might create timestamps of this form.
It written that the correct new format is
ISO 8601 string, "yyyymmddThhmmssZ"
The use of "Z" to indicate UTC in time and date strings.
The use of "UTC" is not CF, UDUNITS or ISO 8601 compliant.
Netcdf files with time unit in the form "s since 2021-01-29 01:00:00.000 UTC" (with the explicit name of UTC timezone) throw this error:
While trying to parse the date of the NetCDF-CF "units" strings since 2021-01-29 01:00:00.000 UTC, the following error occurred: The given string 2021-01-29 01:00:00 UTC does not agree with any of the supported format styles.Although probably not compliant with unidata UDUNITS. the unidata netcdf lib itself might create timestamps of this form.
see also here: https://www.unidata.ucar.edu/support/help/MailArchives/netcdf/msg09293.html