处理Unix时间戳的工具类

Assets/Utils.meta

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+fileFormatVersion: 2
+guid: cdc8c485ff3349409e3bc22fa04a148e
+timeCreated: 1676013511

Assets/Utils/DateTimeUtil.cs

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+using System;
+
+namespace Utils
+{
+    public class DateTimeUtil
+    {
+        private static readonly DateTime UtcStartTime = new DateTime(1970, 1, 1, 0, 0, 0, 0);
+    
+        /// <summary>
+        /// 转换为Unix时间戳
+        /// </summary>
+        /// <param name="dateTime">需要转换的时间</param>
+        /// <returns>Unix时间戳</returns>
+        public static long ToUnixTimeStamp(DateTime dateTime)
+        {
+            var utcTime = dateTime.ToUniversalTime();
+            var timeSpan = utcTime - UtcStartTime;
+
+            return Convert.ToInt64(timeSpan.TotalSeconds);
+        }
+
+        /// <summary>
+        /// 从Unix时间戳转换为日期时间对象
+        /// </summary>
+        /// <param name="timeStamp">Unix时间戳</param>
+        /// <returns>Unix时间戳代表的日期时间对象</returns>
+        public static DateTime FromUnixTimeStamp(long timeStamp)
+        {
+            var utcTime = UtcStartTime.AddSeconds(timeStamp);
+
+            return TimeZoneInfo.ConvertTimeFromUtc(utcTime, TimeZoneInfo.Local);
+        }
+    }
+}

Assets/Utils/DateTimeUtil.cs.meta

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+fileFormatVersion: 2
+guid: aed416aa0d4d4f04a91c72c39d052972
+timeCreated: 1676013530