/**
 * Time utility functions
 * Provides common time manipulation and formatting utilities
 */
/**
 * Check if two times are the same (ignoring date part)
 * @param time1 First time
 * @param time2 Second time
 * @returns Whether times are the same
 */
export declare function isSameTime(time1: Date, time2: Date): boolean;
/**
 * Check if a time is within a range
 * @param time Time to check
 * @param startTime Range start time
 * @param endTime Range end time
 * @returns Whether time is in range
 */
export declare function isTimeInRange(time: Date, startTime: Date, endTime: Date): boolean;
/**
 * Get time-only milliseconds (ignoring date part)
 * @param time Date object
 * @returns Milliseconds since midnight
 */
export declare function getTimeOnlyMs(time: Date): number;
/**
 * Format time to string
 * @param time Time to format
 * @param format Format string
 * @returns Formatted time string
 */
export declare function formatTime(time: Date, format?: string): string;
/**
 * Parse time string to Date object
 * @param timeString Time string to parse
 * @returns Parsed Date object or null if invalid
 */
export declare function parseTime(timeString: string): Date | null;
/**
 * Convert 24-hour to 12-hour format
 * @param hour24 Hour in 24-hour format (0-23)
 * @returns Object with hour12 (1-12) and period ('AM'|'PM')
 */
export declare function convertTo12Hour(hour24: number): {
    hour12: number;
    period: 'AM' | 'PM';
};
/**
 * Convert 12-hour to 24-hour format
 * @param hour12 Hour in 12-hour format (1-12)
 * @param period AM or PM
 * @returns Hour in 24-hour format (0-23)
 */
export declare function convertTo24Hour(hour12: number, period: 'AM' | 'PM'): number;
/**
 * Get current time with only time components (no date)
 * @returns Date object with today's date but current time
 */
export declare function getCurrentTimeOnly(): Date;
/**
 * Round time to nearest step interval
 * @param time Input time
 * @param minuteStep Step interval for minutes
 * @param secondStep Step interval for seconds
 * @returns Rounded time
 */
export declare function roundTimeToStep(time: Date, minuteStep?: number, secondStep?: number): Date;
/**
 * Create time from components
 * @param hours Hours (0-23)
 * @param minutes Minutes (0-59)
 * @param seconds Seconds (0-59)
 * @param milliseconds Milliseconds (0-999)
 * @returns Date object with specified time
 */
export declare function createTime(hours: number, minutes: number, seconds?: number, milliseconds?: number): Date;
/**
 * Add time duration to a time
 * @param time Base time
 * @param hours Hours to add
 * @param minutes Minutes to add
 * @param seconds Seconds to add
 * @returns New time with added duration
 */
export declare function addTime(time: Date, hours?: number, minutes?: number, seconds?: number): Date;
/**
 * Get time difference in milliseconds
 * @param time1 First time
 * @param time2 Second time
 * @returns Difference in milliseconds (time1 - time2)
 */
export declare function getTimeDifference(time1: Date, time2: Date): number;