Modern Chrono DateTime AssumeLocal

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DateTime.AssumeLocal

Returns the moment the date-time names if its clock reading is taken as local time.

Syntax

DateTime.AssumeLocal

Examples

#import "std/chrono"
using chrono

dim as DateTime d = DateTime( 2026, 8, 13, 14, 30, 5, 123 )
'' Reads the clock value as a reading in the OS time zone, whatever offset
'' it carries -- the local twin of AssumeUtc. The offset used is the one in
'' force on 13 August, not today's.
dim as Instant i = d.AssumeLocal( )

'' The same clock reading again, now with the offset recorded
print DateTime.FromInstant( i, TimeZoneInfo.LocalOffsetAt( i ) ).ToIsoString( )

'' A reading in a fall-back overlap happens twice: AssumeLocal names the
'' EARLIER moment. A reading in a spring-forward gap never happens: it moves
'' forward by the gap, so 02:30 in a 02:00 -> 03:00 gap names 03:30.

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Library: Chrono Date and Time
Category: Date and Time (Chrono)
Documented under: The Members