LocalTime.fromDateTime constructor

LocalTime.fromDateTime(
  1. DateTime dateTime
)

Constructs a LocalTime from a DateTime object by extracting its time portion.

Example

final dt = DateTime(2024, 1, 1, 10, 45, 30);
final time = LocalTime.fromDateTime(dt); // 10:45:30

A value object representing a time of day without any date or timezone information.

LocalTime is immutable and supports operations such as:

  • Parsing from strings
  • Formatting to strings
  • Time arithmetic (addition/subtraction)
  • Comparison and equality checks

This class is useful when working with:

  • Scheduling systems
  • Time pickers
  • Representing specific times (like "08:30 AM") without a date context

Example

final time = LocalTime(14, 30); // 2:30 PM
final later = time.plusMinutes(45); // 3:15 PM
print(later); // 15:15:00

Implementation

factory LocalTime.fromDateTime(DateTime dateTime) {
  return LocalTime(dateTime.hour, dateTime.minute, dateTime.second, dateTime.millisecond);
}