DurationExceeded check if duration is now meaning zero.

IsTTLExpired check whether current time has exceeded creation time + ttl duration.

NextCronDuration check if next cron activation time has exceeded if so return true if activation time has not reached return false and remaining time in case it failed to parse cron expression return error.

TransformObjMetadata removes managed fields and the "kubectl.kubernetes.io/last-applied-configuration" annotation from Kubernetes objects.