UKismetMathLibrary::EqualEqual_DateTimeDateTime

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Returns true if two FDateTime values represent the exact same point in time. Comparison is tick-precise (100-nanosecond resolution).

Caveats & Gotchas

• Exact equality on timestamps derived from different sources (e.g. FDateTime::UtcNow() called twice, or a network-replicated value) is almost never true due to tick-level differences. For "close enough" comparisons use Subtract_DateTimeDateTime and check the span against a tolerance.
• UTC and local-time FDateTime values with the same wall-clock moment will not be equal — FDateTime has no timezone tag, so a UTC noon and a local noon on the same date compare equal only if both were constructed the same way.

Signature

static UE_INL_API bool EqualEqual_DateTimeDateTime( FDateTime A, FDateTime B );

Parameters

Name	Type	Description	Default
A	FDateTime	First date-time to compare.	—
B	FDateTime	Second date-time to compare.	—

Return Type

bool

Example

Check for an exact saved timestamp C++

FDateTime Checkpoint = GetSavedCheckpointTime();
FDateTime Current = FDateTime::UtcNow();
if (UKismetMathLibrary::EqualEqual_DateTimeDateTime(Checkpoint, Current))
{
    // Exact match — extremely rare in practice
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?