import type { Dayjs } from 'dayjs';
export declare function getTimeSegments(timeInput: string): {
    hourSegment: string | null;
    minuteSegment: string | null;
};
export declare function validateTimeInput(timeInput: string, periodInput: string): {
    timeIsValid: boolean;
    is24HourNotation: boolean;
};
export declare function validateHourSegment(hourSegment: string): {
    hourSegmentValid: boolean;
    is24HourNotation: boolean | null;
};
export declare function parseDateTimeToDisplayTime(dateTime: Dayjs | null): {
    displayTime: string;
    displayPeriod: string;
    timeParseFail?: boolean;
};
export declare function parseInputDateTimeToFhirDateTime(dateInput: string, newTimeInput: string, periodInput: string, is24HourNotation: boolean): string;