Fellowship in different circles

1st function

I have a riddle for you.  What entirely different functions was I able to attend with two different groups both taking place at 9 o'clock on Sunday September 15 which took place in both the years 2013 and 2006?  Give up?

2nd function

Our town is comprised of many different people from different tribal groups and countries.  In addition to the five main Southern Sudanese tribes represented here in town, there are countless tribes from the North as well as foreigners such as from the East African communities such as Uganda and Kenya as well as those from Ethiopia in addition to the communities from Asia, Europe and North America represented in various international organizations and the United Nations.  So what two functions did I attend fully at 9 o'clock, one in the year 2013 and the other in 2006 both taking place yesterday on September 15, 2013?  The answer is church services for a Southern Sudanese congregation and an Ethiopian congregation.  Confused?  Let me explain.  Southern Sudan follows the same calendar we use in North America as well as the same way of telling time.  9 o'clock therefore represents what we know as 9am.  Ethiopians use a different calendar system which includes 13 months a year.  So, they just recently celebrated New Years on Wednesday September 11.  The year: 2006.  Moreover, they tell time using a different system which assigns 7am as the first hour.  9 o'clock therefore represents what we know as 3pm.  This is how I was able to attend both functions.

Just shows the multitude of different cultures and perspectives that exists here and the privilege I have to interact with some of them.