引入jquery 在主题的header.php引入以下

<script src="https://static.q6q.cc/qiangzai/javascript/jquery-1.9.1.min.js"></script>

然后把以下css样式放入主题的style.css里

.aside-count .content {
padding: 15px
}
.aside-count .content .item {
margin-bottom: 15px
} 
.aside-count .content .item:last-child {
margin-bottom: 0
}
.aside-count .content .item .title {
font-size: 12px;
color: var(--minor);
margin-bottom: 5px;
display: flex;
align-items: center
}
.aside-count .content .item .title span {
color: var(--theme);
font-weight: 500;
font-size: 14px;
margin: 0 5px
}
.aside-count .content .item .progress {
display: flex;
align-items: center
} 
.aside-count .content .item .progress .progress-bar {
height: 10px;
border-radius: 5px;
overflow: hidden;
background: var(--classC);
width: 0;
min-width: 0;
flex: 1;
margin-right: 5px
}
@keyframes progress {
0% {
    background-position: 0 0
}

100% {
    background-position: 30px 0
}
}
.aside-count .content .item .progress .progress-bar .progress-inner {
width: 0;
height: 100%;
border-radius: 5px;
transition: width 0.35s;
-webkit-animation: progress 750ms linear infinite;
animation: progress 750ms linear infinite
}
.aside-count .content .item .progress .progress-bar .progress-inner-1 {
background: #bde6ff;
background-image: linear-gradient(135deg, #50bfff 25%, transparent 25%, transparent 50%, 
#50bfff 50%, #50bfff 75%, transparent 75%, transparent 100%);
background-size: 30px 30px
}
.aside-count .content .item .progress .progress-bar .progress-inner-2 {
background: #ffd980;
background-image: linear-gradient(135deg, #f7ba2a 25%, transparent 25%, transparent 50%, 
#f7ba2a 50%, #f7ba2a 75%, transparent 75%, transparent 100%);
background-size: 30px 30px
}
.aside-count .content .item .progress .progress-bar .progress-inner-3 {
background: #ffa9a9;
background-image: linear-gradient(135deg, #ff4949 25%, transparent 25%, transparent 50%, 
#ff4949 50%, #ff4949 75%, transparent 75%, transparent 100%);
background-size: 30px 30px
} 
.aside-count .content .item .progress .progress-bar .progress-inner-4 {
background: #67c23a;
background-image: linear-gradient(135deg, #4f9e28 25%, transparent 25%, transparent 50%, 
#4f9e28 50%, #4f9e28 75%, transparent 75%, transparent 100%);
background-size: 30px 30px
}

之后引入以下js，具体是自建js引入还是放在主题的js文件里，自己请随意发挥。

function init_life_time() {
        function getAsideLifeTime() {
            let nowDate = +new Date();
            let todayStartDate = new Date(new Date().toLocaleDateString()).getTime();
            let todayPassHours = (nowDate - todayStartDate) / 1000 / 60 / 60;
            let todayPassHoursPercent = (todayPassHours / 24) * 100;
            $('#dayProgress .title span').html(parseInt(todayPassHours));
            $('#dayProgress .progress .progress-inner').css('width', 
parseInt(todayPassHoursPercent) + '%');
            $('#dayProgress .progress .progress- 
percentage').html(parseInt(todayPassHoursPercent) + '%');
            let weeks = {
                0: 7,
                1: 1,
                2: 2,
                3: 3,
                4: 4,
                5: 5,
                6: 6
            };
            let weekDay = weeks[new Date().getDay()];
            let weekDayPassPercent = (weekDay / 7) * 100;
            $('#weekProgress .title span').html(weekDay);
            $('#weekProgress .progress .progress-inner').css('width', 
parseInt(weekDayPassPercent) + '%');
            $('#weekProgress .progress .progress-percentage').html(parseInt(weekDayPassPercent) + '%');
            let year = new Date().getFullYear();
            let date = new Date().getDate();
            let month = new Date().getMonth() + 1;
            let monthAll = new Date(year, month, 0).getDate();
            let monthPassPercent = (date / monthAll) * 100;
            $('#monthProgress .title span').html(date);
            $('#monthProgress .progress .progress-inner').css('width', parseInt(monthPassPercent) + '%');
            $('#monthProgress .progress .progress-percentage').html(parseInt(monthPassPercent) + '%');
            let yearPass = (month / 12) * 100;
            $('#yearProgress .title span').html(month);
            $('#yearProgress .progress .progress-inner').css('width', parseInt(yearPass) + '%');
            $('#yearProgress .progress .progress-percentage').html(parseInt(yearPass) + '%');
        }
        getAsideLifeTime();
        setInterval(() => {
            getAsideLifeTime();
        }, 1000);
    }
    init_life_time()

到了最后一步 选择合适的位置添加代码

    <div class="aside aside-count">
    <div class="p-3"><span style="font-size: 1.2em; color: orange;"><i class="fas fa-hourglass-half"></i></span> 人生倒计时</div>
    <div class="content">
        <div class="item" id="dayProgress">
            <div class="title">今日已经过去<span></span>小时</div>
            <div class="progress">
                <div class="progress-bar">
                    <div class="progress-inner progress-inner-1"></div>
                </div>
                <div class="progress-percentage"></div>
            </div>
        </div>
        <div class="item" id="weekProgress">
            <div class="title">这周已经过去<span></span>天</div>
            <div class="progress">
                <div class="progress-bar">
                    <div class="progress-inner progress-inner-2"></div>
                </div>
                <div class="progress-percentage"></div>
            </div>
        </div>
        <div class="item" id="monthProgress">
            <div class="title">本月已经过去<span></span>天</div>
            <div class="progress">
                <div class="progress-bar">
                    <div class="progress-inner progress-inner-3"></div>
                </div>
                <div class="progress-percentage"></div>
            </div>
        </div>
        <div class="item" id="yearProgress">
            <div class="title">今年已经过去<span></span>个月</div>
            <div class="progress">
                <div class="progress-bar">
                    <div class="progress-inner progress-inner-4"></div>
                </div>
                <div class="progress-percentage"></div>
            </div>
        </div>
    </div>
</div>