Class DateTimeHelper
boolean|integer phpGPX\Helpers\DateTimeHelper::comparePointsByTimestamp(\phpGPX\Models\Point $point1, \phpGPX\Models\Point $point2)
null|string phpGPX\Helpers\DateTimeHelper::formatDateTime($datetime, string $format, string $timezone)
\DateTime phpGPX\Helpers\DateTimeHelper::parseDateTime($value, string $timezone)