MongoDB ObjectId 解码器：快速上手指南

使用方法

1. 打开工具，将内容粘贴到左侧输入框。
2. 只调整任务真正需要的选项——多数情况下默认值就是正确的。
3. 在右侧查看结果，输入时结果会实时更新。
4. 用「复制」取走结果，或用「下载」保存为文件。

示例

The first four bytes are a Unix timestamp, which is why ObjectIds sort roughly by creation time.

输入

507f1f77bcf86cd799439011

输出 — 搜索结果

507f1f77bcf86cd799439011

Layout (12 bytes / 24 hex characters)
  timestamp    4 bytes  507f1f77  = 1350508407
  random       5 bytes  bcf86cd799   (process-unique, per the current spec)
  counter      3 bytes  439011   = 4427793

Creation time (UTC)   2012-10-17T21:13:27.000Z
Creation time (local) Wed Oct 17 2012 21:13:27 GMT+0000 (Coordinated Universal Time)
Age                   5091.9 days

Older drivers used 3-byte machine id + 2-byte process id instead of 5 random bytes;
both layouts put the timestamp first, which is why ObjectIds sort roughly by time.

运行

说明

Extract the creation timestamp, random bytes and counter from a 24-character ObjectId.

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