start property
The start date for a budget. If you created your budget and didn't specify a
start date, AWS defaults to the start of your chosen time period (DAILY,
MONTHLY, QUARTERLY, or ANNUALLY). For example, if you created your budget on
January 24, 2018, chose DAILY, and didn't set a start date, AWS
set your start date to 01/24/18 00:00 UTC. If you chose
MONTHLY, AWS set your start date to 01/01/18 00:00
UTC. The defaults are the same for the AWS Billing and Cost
Management console and the API.
You can change your start date with the UpdateBudget operation.
Implementation
final DateTime? start;