presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/StorageManagerConfig.java/StorageManagerConfig/setShardDayBoundaryTimeZone
class StorageManagerConfig:    @Config("storage.shard-day-boundary-time-zone")
    @ConfigDescription("Time zone to use for computing day boundary for shards")
    public StorageManagerConfig setShardDayBoundaryTimeZone(String timeZone)
    {
        this.shardDayBoundaryTimeZone = timeZone;
        return this;
    }