Modern Tz TimeZone TryResolve

Home › Time Zones › Time Zones (std/tz) › TimeZone.TryResolve

TimeZone.TryResolve

Turns a wall-clock reading in the zone into one moment, under a Disambiguation policy.

Syntax

TimeZone.TryResolve( byref wall as chrono.DateTime, byval policy as Disambiguation, byref result as chrono.Instant ) as boolean

Notes

• False when the policy refuses the reading (dzReject on a repeated or skipped reading), or it falls outside the years 1 to 9999.
• See Disambiguation for what each policy does.

Examples

#import "std/tz"
#import "std/tzdata"
#import "std/chrono"
using tz
dim as TimeZone ny = TimeZone.FindById( "America/New_York" )
dim as chrono.Instant r
print ny.TryResolve( chrono.DateTime( 2025, 3, 9, 2, 30, 0, 0 ), dzCompatible, r )    '' true
print r.ToIsoString( )                                                               '' 2025-03-09T07:30:00Z
print ny.TryResolve( chrono.DateTime( 2025, 3, 9, 2, 30, 0, 0 ), dzReject, r )        '' false

---

Library: Time Zones (std/tz)
Category: Time Zones
Documented under: TimeZone