DatetimeOrDatetimeTz is a convenient alias for bdlb::Variant2<bdlt::Datetime, bdlt::DatetimeTz>.
DatetimeOrDatetimeTz
bdlb::Variant2<bdlt::Datetime, bdlt::DatetimeTz>
Declared in <balber_berutil.h>
<balber_berutil.h>
typedef bdlb::Variant2<bdlt::Datetime, bdlt::DatetimeTz> DatetimeOrDatetimeTz;