public Builder clearStartTimeOfDay() {
        bitField0_ = (bitField0_ & ~0x00000004);
        startTimeOfDay_ = null;
        if (startTimeOfDayBuilder_ != null) {
          startTimeOfDayBuilder_.dispose();
          startTimeOfDayBuilder_ = null;
        }
        onChanged();
        return this;
      }
<pre>
The time in UTC that a transfer job is scheduled to run. Transfers may
start later than this time.

If `start_time_of_day` is not specified:

*   One-time transfers run immediately.
*   Recurring transfers run immediately, and each day at midnight UTC,
    through
    [schedule_end_date][google.storagetransfer.v1.Schedule.schedule_end_date].

If `start_time_of_day` is specified:

*   One-time transfers run at the specified time.
*   Recurring transfers run at the specified time each day, through
    `schedule_end_date`.
</pre>

<code>.google.type.TimeOfDay start_time_of_day = 3;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java