Pass the specified object to the specified hashAlg. This function integrates with the bslh modular hashing system and effectively provides a bsl::hash specialization for DatetimeTz. Note that two objects which represent the same UTC time but have different offsets will not (necessarily) hash to the same value.
Declared in <bdlt_datetimetz.h>
template<class HASHALG>
void
hashAppend(
HASHALG& hashAlg,
DatetimeTz const& object);