long about
Approximately at the time or date of. A phrase used to speak vaguely about a certain time frame. Long about my third cup of coffee, I started feeling too jittery to sit at my desk and actually work. Long about March, I really can't wait anymore for spring. They first came to this country long about 1775.
(a)long about
a certain time near a particular time. We arrived in town long about midnight and went right to the hotel. Along about his thirteenth birthday, Tom decided he was old enough to leave home.