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1900/1/1 より前の日付を Excel出力 で表示すると、正しい値が出力されません。

Troubleshooting


Problem

DB 上の日付型のデータで 1900/1/1 より前の日付をレポートで出力すると、 HTML 出力時には問題ないが、Excel 出力時に正しい値が出力されません。

Symptom

例えば、1899/1/1 を出力すると、3797/12/29 と出力されます。

Document Location

Worldwide

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Document Information

Modified date:
14 January 2026

UID

ibm16440303