Recommendation:
Arrive Early (Add days BEFORE the conference).
For those coming from outside the immediate region you will have a long flight and for those crossing crossing many time zones, you will likely face significant jet lag.
Conference Performance:
If you arrive just before the conference, you might be fighting sleep during sessions. Arriving 3–4 days early allows you to adjust to the time zone so you are sharp for your work obligations.
Acclimatization:
It takes a few days to physically adjust to the heat and humidity.
Relaxation:
If you add days after, you might be exhausted from the combined travel and conference schedule. However, if you plan to do a 2-week trip, a split (e.g., 3 days before, 10 days after)