In legacy\_sql, `UTC_USEC_TO_WEEK` has `day_of_week` argument to specify what day of week the week is counted from. But in standard SQL, `TIMESTAMP_TRUNC(<timestamp>, WEEK)` don't have this argument and it defaults to Sunday.

Is there any clean workaround except: `TIMESTAMP_ADD(TIMESTAMP_TRUNC(<timestamp>, WEEK), INTERVAL 1 DAY)`?