LocalDateTime.parse constructor

LocalDateTime.parse(
  1. String dateTimeString
)

Parses a string in ISO 8601 format: YYYY-MM-DDTHH:mm[:ss[.SSS]]

Throws InvalidFormatException for invalid formats.

Example:

final parsed = LocalDateTime.parse("2025-06-27T08:15:30.123");

A date-time object without a timezone, composed of a LocalDate and LocalTime.

This class represents a specific moment on a calendar, combining a date and time without referencing any timezone. It is immutable and supports arithmetic and comparison operations.

Example:

final dateTime = LocalDateTime.of(2024, 12, 31, 23, 59);
print(dateTime); // 2024-12-31T23:59:00

Implementation

factory LocalDateTime.parse(String dateTimeString) {
  final parts = dateTimeString.split('T');
  if (parts.length != 2) {
    throw InvalidFormatException('Invalid datetime format. Expected YYYY-MM-DDTHH:mm:ss');
  }
  final date = LocalDate.parse(parts[0]);
  final time = LocalTime.parse(parts[1]);
  return LocalDateTime(date, time);
}