void setBuildStartTime(Date buildStartTime);

    /**
     * Gets the start time of the build.
     *
     * @return The start time of the build or {@code null} if unknown.
     */
    Instant getBuildStartInstant();

    /**
     * Sets the start time of the build.
     *
     * @param buildStartInstant The start time of the build, may be {@code null}.
     */