At first the loss of light in the evening is gradual…

8:30 pm sunset – Wednesday, July 19
8:15 pm sunset – Thursday, August 3
8:00 pm sunset – Monday, August 14
7:45 pm sunset – Thursday, August 24
7:30 pm sunset – Saturday, September 2
7:15 pm sunset – Sunday, September 10
7:00 pm sunset – Tuesday, September 19
6:45 pm sunset – Wednesday, September 27
6:30 pm sunset – Friday, October 6
6:15 pm sunset – Sunday, October 15
6:00 pm sunset – Tuesday, October 24
4:45 pm sunset – Sunday, November 5
Standard Time Begins – Sunset on Sunday, November 5 is at 4:45 pm