In 6.0.1, the time modifiers (e.g. earliest, latest) must be lowercase. This may be a bug, the search job inspection shows mixed interpretation, but the base lispy output treats the date values as search terms. E.g.: Search: Latest="01/25/2014:00:00:00" DEBUG: base lispy: [ AND 00 01 2014 25 ... keywords latest::01/25/2014:00:00:00 ... View more