1978

The year 1978 started on Sunday, January 1, and ended on Sunday, December 31. On Sunday, December 31, a leap second was inserted.

Calendar with holidays
Holidays:
 * New Year's Day: Sunday, January 1
 * Epiphany: Friday, January 6
 * Super Bowl Sunday: Sunday, January 15
 * Groundhog Day: Thursday, February 2
 * Mardi Gras: Tuesday, February 7
 * Ash Wednesday: Wednesday, February 8
 * Lincoln's Birthday: Sunday, February 12
 * Valentine's Day: Tuesday, February 14
 * Washington's Birthday: Monday, February 20
 * Saint Patrick's Day: Friday, March 17
 * Palm Sunday: Sunday, March 19
 * Good Friday: Friday, March 24
 * Easter: Sunday, March 26
 * April Fools' Day: Saturday, April 1
 * Tax Day: Monday, April 17
 * Earth Day: Saturday, April 22
 * Daylight Saving Time Starts (clocks spring forward): Sunday, April 30 at 2:00 AM, which becomes 3:00 AM
 * Cinco de Mayo: Friday, May 5
 * Mother's Day: Sunday, May 14
 * Armed Forces Day: Saturday, May 20
 * Memorial Day: Monday, May 29
 * Flag Day: Wednesday, June 14
 * Father's Day: Sunday, June 18
 * Juneteenth: Monday, June 19
 * Independence Day: Tuesday, July 4
 * Labor Day: Monday, September 4
 * Citizenship Day: Sunday, September 17
 * Columbus Day: Monday, October 9
 * Sweetest Day: Saturday, October 21
 * Daylight Saving Time Ends (clocks fall back): Sunday, October 29 at 2:00 AM, which becomes 1:00 AM
 * Halloween: Tuesday, October 31
 * Election Day: Tuesday, November 7
 * Veterans Day: Saturday, November 11
 * Thanksgiving: Thursday, November 23
 * Black Friday: Friday, November 24
 * Pearl Harbor Remembrance Day: Thursday, December 7
 * Christmas Eve: Sunday, December 24
 * Christmas: Monday, December 25
 * Kwanzaa: Tuesday, December 26, 1978, to Monday, January 1, 1979
 * New Year's Eve: Sunday, December 31