Try adding
-M DateTime
-M DateTime::Duration
-M DateTime::Format::Builder
-M DateTime::Format::Builder::Parser
-M DateTime::Format::Builder::Parser::Dispatch
-M DateTime::Format::Builder::Parser::Quick
-M DateTime::Format::Builder::Parser::Regex
-M DateTime::Format::Builder::Parser::Strptime
-M DateTime::Format::Builder::Parser::generic
-M DateTime::Format::ISO8601
-M DateTime::Helpers
-M DateTime::Infinite
-M DateTime::Locale
-M DateTime::Locale::Base
-M DateTime::Locale::Catalog
-M DateTime::Locale::en
-M DateTime::Locale::en_US
-M DateTime::Locale::root
-M DateTime::TimeZone
-M DateTime::TimeZone::Catalog
-M DateTime::TimeZone::Floating
-M DateTime::TimeZone::Local
-M DateTime::TimeZone::OffsetOnly
-M DateTime::TimeZone::UTC
];