Many many times. Over the past 50 years and for the next 50 years, these are the years when New Year's Day is a Sunday.
1967
1978
1984
1989
1995
2006
2012
2017
2023
2034
2040
2045
2051
2062
2068
2073
2079
2090
2096
2102
2108
2113
2119
2130
2136
2141
2147
2158
2164
2019
Some years that have had April 13th fall on a Sunday include:20142008
The next year in which Christmas day will fall on a Sunday will be in 2016.
IN 2010!!
2012
2012!
2000
New Years day falls on Sunday four times in a 28 year cycle. So if you start from any one of the following years, 1950, 1978, 2006, 2034, or 2062 (note that they are all 28 years apart) which all have New Years day falling on Sunday, and then add 6 years to the year, New Years day will be on Sunday again. Then, if you add 5 more years to that year, New Years will fall on Sunday again. Then add 6 more years and finally add 11 more years to the year, they will all result in years that have New Years falling on Sunday. This cycle repeats indefinitely. It has been repeating for at least 2000 years when we started using the current calender. This same 28 year cycle works on all calender days (except February 29) but each calender day will have different starting years for the cycle. The +6,+5,+6,+11 year thing still applies.
June 9, last fell on a Sunday in 2002 and will again fall on this day in 2013.
Exactly 14.5% of all years begin on a Sunday.
Halloween falls on a Sunday whenever October 31 is a Sunday, about once every seven years.
1950