如何使用Jenkins Multibranch Pipeline检查同一分支上的先前构建是否已开始<3小时或>3小时

pipeline {
    agent any
    
    stages {
        stage('Check Previous Build') {
            steps {
                script {
                    def previousBuild = currentBuild.previousBuild
                    if (previousBuild != null) {
                        def previousStartTime = previousBuild.startTimeInMillis
                        def currentTime = currentBuild.startTimeInMillis
                        def timeDifference = currentTime - previousStartTime
                        
                        if (timeDifference < 3 * 60 * 60 * 1000) {
                            // 执行先前构建时间小于3小时的操作
                            echo 'Previous build started less than 3 hours ago.'
                        } else {
                            // 执行先前构建时间大于3小时的操作
                            echo 'Previous build started more than 3 hours ago.'
                        }
                    } else {
                        // 没有先前构建的情况下的操作
                        echo 'No previous build found.'
                    }
                }
            }
        }
        
        // 其他阶段和步骤...
    }
}