转：类似微信聊天中，时间的格式显示（js）

 原博客网址：https://blog.csdn.net/summer_na/article/details/104845012 

微信聊天中时间显示的说明

时间	显示格式
当天	当天的消息，显示时间
超过1天，小于1周	显示星期+的时间
大于1周	显示日期+时间

Js实现

function showTimePipe(unix_stamp) { // unix_stamp 精确到微秒
    var _today_obj = new Date(),
        _today_date = {
            y: _today_obj.getFullYear(),
            m: (_today_obj.getMonth() + 1 < 10 ? '0' + (_today_obj.getMonth() - -1) : (_today_obj.getMonth() - -1)),
            d: (_today_obj.getDate() < 10 ? '0' + _today_obj.getDate() : _today_obj.getDate())
        }

    var _today_stamp = Date.parse(_today_date.y + '/' + _today_date.m + '/' + _today_date.d + ' 00:00:00')

    var stamp = []
    stamp[0] = _today_stamp + 86400000
    stamp[1] = _today_stamp
    stamp[2] = _today_stamp - 86400000
    stamp[3] = _today_stamp - 172800000

    stamp[4] = _today_stamp - 518400000 // 7天

    stamp[5] = _today_stamp - 31536000000 // 365天

    var _compare_obj = new Date()
    _compare_obj.setTime(unix_stamp)

    var return_str

    if (unix_stamp >= stamp[1] && unix_stamp < stamp[0]) {
        return_str = _compare_obj.getHours() + ':' + (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj
            .getMinutes() : _compare_obj.getMinutes())
    } else if (unix_stamp >= stamp[2] && unix_stamp < stamp[1]) {
        var yesterdayText = '昨天'
        return_str = yesterdayText + ' ' + _compare_obj.getHours() + ':' +
            (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj.getMinutes() : _compare_obj.getMinutes())
    } else if (unix_stamp >= stamp[3] && unix_stamp < stamp[2]) {
        var theDayBeforeYesterdayText = '前天'
        return_str = theDayBeforeYesterdayText + ' ' + _compare_obj.getHours() + ':' +
            (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj.getMinutes() : _compare_obj.getMinutes())

    } else if (unix_stamp >= stamp[4] && unix_stamp < stamp[3]) { // 7天内
        var daynames = ['天', '一', '二', '三', '四', '五', '六']
        var dathStr = '星期' + daynames[_compare_obj.getDay()]

        var SundayText = '星期天'
        var MondayText = '星期一'
        var TuesdayText = '星期二'
        var WednesdayText = '星期三'
        var ThursdayText = '星期四'
        var FridayText = '星期五'
        var SaturdayText = '星期六'

        var dathStr2

        switch (dathStr) {
            case '星期天':
                dathStr2 = SundayText
                break
            case '星期一':
                dathStr2 = MondayText
                break
            case '星期二':
                dathStr2 = TuesdayText
                break
            case '星期三':
                dathStr2 = WednesdayText
                break
            case '星期四':
                dathStr2 = ThursdayText
                break
            case '星期五':
                dathStr2 = FridayText
                break
            case '星期六':
                dathStr2 = SaturdayText
                break
            default:
                dathStr2 = dathStr
                break
        }

        return_str = dathStr2 + ' ' + _compare_obj.getHours() + ':' +
            (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj.getMinutes() : _compare_obj.getMinutes())
    } else if (unix_stamp >= stamp[5] && unix_stamp < stamp[4]) { // 365天内
        var monthText = '月'
        var dayText = '日'
        return_str = (_compare_obj.getMonth() - (-1)) + monthText + _compare_obj.getDate() + dayText + ' ' +
            _compare_obj.getHours() + ':' + (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj.getMinutes() :
                _compare_obj.getMinutes())

    } else {
        var yearText = '年'
        var monthText = '月'
        var dayText = '日'
        return_str = _compare_obj.getFullYear() + yearText + (_compare_obj.getMonth() - (-1)) +
            monthText + _compare_obj.getDate() + dayText + ' ' + _compare_obj.getHours() + ':' +
            (_compare_obj.getMinutes() < 10 ? '0' + _compare_obj.getMinutes() : _compare_obj.getMinutes())
    }
    return return_str

}

参考网址

• 微信聊天消息时间显示说明：https://kf.qq.com/faq/161224e2i22a161224qqYfAR.html