There are plenty of synonyms for the phrase "horse buggy day". This phrase could refer to a time in the past when horse-drawn carriages were a common mode of transportation. It could also describe a laid-back and slow-paced way of life. Other phrases that could be used as synonyms include "old-fashioned era", "nostalgic time", and "bygone days". These phrases all evoke a sense of simplicity, charm, and a slower pace of life. They remind us of a time when people took the time to appreciate the beauty of life rather than rushing through it.