AWS SDK for .NET Documentation
StartAt Property
AmazonAmazon.StorageGateway.ModelUpdateSnapshotScheduleRequestStartAt Did this page help you?   Yes   No    Tell us about it...
The hour of the day at which the snapshot schedule begins represented as hh, where hh is the hour (0 to 23). The hour of the day is in the time zone of the gateway.

Constraints:

Range
0 - 23

Declaration Syntax
C#
public int StartAt { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)