The cycle date is when your statement's billing period ends (also known as a statement closing date).

• When your statement cycles, this generates your billing statement.
• The date can vary slightly from one month to the next. 
• The reason for this variance is because statements won’t close on a weekend or holiday.

The account cycle is the range of dates your billing period starts and ends.

• It's approximately 30 days long.
• The reason an account cycle isn't a fixed number of days is because the statement cycle date isn't fixed. Which causes the number of days in each cycle to vary.