The input of date/time should use type="date" and type="time" in order to constrain the input values to valid figures. Now it says type="text". Similarly for other fields. See e.g. the source of this page extracted from a web presentation:
http://ross.iasfbo.inaf.it/GLORIA-WP2/Misce/tags-html5.html
The input of date/time should use type="date" and type="time" in order to constrain the input values to valid figures. Now it says type="text". Similarly for other fields. See e.g. the source of this page extracted from a web presentation: http://ross.iasfbo.inaf.it/GLORIA-WP2/Misce/tags-html5.html