XMP Specification September 2005 71 XMP Schemas EXIF Schemas 4 characters in the range of 0 through 127 are not escaped (for example, spaces) and a null terminator is added. XMP text values can be localized. For properties of type Lang Alt, an array of localized text values can be supplied. When converting from EXIF to XMP, the value supplied by the EXIF metadata should be written to the default entry ([@xml:lang='x-default']). When converting from XMP to EXIF, the default entry should be used to supply the EXIF metadata. EXIF Dates All date/time values are stored in XMP using ISO 8601 format. This is a combined date and time, with fractional seconds, and a time zone designation. The binary EXIF values generally separate the fractional seconds. EXIF 2.1 lacks time zone information this has been partially added in EXIF 2.2. When converting to XMP, the fractional seconds should be included. If no time zone is contained in the EXIF, convert to XMP assuming a local time.