Returns literal when converted to string
StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticLAST_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticNEXT_StaticTHIS_StaticTHIS_StaticTHIS_StaticTHIS_StaticTHIS_StaticTHIS_StaticTODAYStaticTOMORROWStaticYESTERDAYReturns literal when converted to string
StaticparseParse IS08601 date(time) formatted string and return date instance
StaticparseParse IS08601 time formatted string and convert to parse string
StatictoConvert JavaScript date object to ISO8601 Date format (e.g. 2012-10-31)
Input date
StatictoConvert JavaScript date object to ISO8601 DateTime format (e.g. 2012-10-31T12:34:56Z)
StatictoConvert JavaScript date object to ISO8601 time format (e.g. 12:34:56.789Z)
A date object to keep Salesforce date literal
See
http://www.salesforce.com/us/developer/docs/soql_sosl/Content/sforce_api_calls_soql_select_dateformats.htm