Excel時間序列值：日期間隔計算與自訂格式代碼
Synopsis
Excel時間序列值是以整數1為1天，小數部份為時分秒，以此為基礎就可以計算時間間隔並且轉換單位，本影片以範例介紹，補充 ...
![[Excel] 從自訂日期時間格式取出時間，並計算前後時間差](https://i.ytimg.com/vi/iji-KzRIaEA/hq720.jpg?sqp=-oaymwE2CNAFEJQDSFXyq4qpAygIARUAAIhCGAFwAcABBvABAfgB1AaAAuADigIMCAAQARghIGUoQTAP&rs=AOn4CLAtGX0UyrnnygsyvvqTC1l9MQBk1g)
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