Confusing time/date selection in the in the download pannel.

[pacesm]

Review the time-selection widget in the download panel.

The rounding of the time-selection interval to whole days causes the time-selection to be increased by one day, e.g, 2016-01-01T00:00:00.000Z/2016-01-01T23:59:59.999Z (1day) selection leads to download request 2016-01-01T00:00:00.000Z/2016-01-02T23:59:59.999Z (2days).