option location = timezone.location(name: "Europe/Istanbul") from(bucket: "os2_db") |> range(start: 0) |> filter(fn: (r) => r["_measurement"] == "os_records")|> filter(fn: (r) => exists r["_field"])|> truncateTimeColumn(unit: 10s)|>last() i did this but it still doesnt show me istanbul time plz help