This changes the formatting of datetimes in the subset and plot pages from a fixed YYYY-MM-DD format, to follow the format specified for each column in the EML. In addition to more closely matching the EML, the advantage is is that we won't display undefined parts of the datetimes. For instance, if a column has date format YYYY, which leaves the month and day as 01-01, those elements will not be displayed.
This changes the formatting of datetimes in the subset and plot pages from a fixed YYYY-MM-DD format, to follow the format specified for each column in the EML. In addition to more closely matching the EML, the advantage is is that we won't display undefined parts of the datetimes. For instance, if a column has date format YYYY, which leaves the month and day as 01-01, those elements will not be displayed.