Docs / Date & time
DatePart is an AMPscript function in the date & time category. year, month, monthName, day, hour, minute; month and day are zero-padded like SFMC.
DatePart(date, part)
%%=DatePart("2026-08-13", "monthName")=%%
August
Output produced by AmpSend's AMPscript engine (validated against Salesforce's own test corpus) - not a hand-written result.
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DatePart in the official AMPscript reference - or browse the official index of AMPscript functions for platform behavior and edge cases.