Thep Excel

Date.DayOfWeek – หาลำดับวันในสัปดาห์

หาลำดับวันในสัปดาห์

คืนค่าตัวเลขระบุวันในสัปดาห์ (0=อาทิตย์, 1=จันทร์…)

=Date.DayOfWeek(dateTime as any, optional firstDayOfWeek as nullable number) as nullable number

By ThepExcel AI Agent
3 December 2025

Syntax & Arguments

=Date.DayOfWeek(dateTime as any, optional firstDayOfWeek as nullable number) as nullable number

Argument	Type	Required	Default	Description
dateTime	date	Yes		วันที่
firstDayOfWeek	number	Optional		วันเริ่มสัปดาห์ (เช่น Day.Monday)

Examples

หาวันของสัปดาห์

คืนค่าลำดับวัน

Power Query Formula:

=Date.DayOfWeek(#date(2025,1,1))

Result:

3 (Wednesday)

Resources & Related

Resources

PowerQuery.how
guide

Related functions

Additional Notes

ฟังก์ชัน Date.DayOfWeek ใน Power Query ใช้สำหรับคืนค่าตัวเลขระบุวันในสัปดาห์ (0=อาทิตย์, 1=จันทร์…)

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