/**
 * Utility functions for time picker component
 */
export type TimePickerType = 'minutes' | 'seconds' | 'hours' | '12hours';
export type Period = 'AM' | 'PM';
export type Granularity = 'day' | 'hour' | 'minute' | 'second';
/**
 * Regular expression to check for valid hour format (00-23)
 */
export declare function isValidHour(value: string): boolean;
/**
 * Regular expression to check for valid 12 hour format (01-12)
 */
export declare function isValid12Hour(value: string): boolean;
/**
 * Regular expression to check for valid minute or second format (00-59)
 */
export declare function isValidMinuteOrSecond(value: string): boolean;
type GetValidNumberConfig = {
    max: number;
    min?: number;
    loop?: boolean;
};
/**
 * Get a valid number within specified range
 */
export declare function getValidNumber(value: string, { max, min, loop }: GetValidNumberConfig): string;
export declare function getValidHour(value: string): string;
export declare function getValid12Hour(value: string): string;
export declare function getValidMinuteOrSecond(value: string): string;
type GetValidArrowNumberConfig = {
    min: number;
    max: number;
    step: number;
};
/**
 * Get valid number when using arrow keys
 */
export declare function getValidArrowNumber(value: string, { min, max, step }: GetValidArrowNumberConfig): string;
export declare function getValidArrowHour(value: string, step: number): string;
export declare function getValidArrow12Hour(value: string, step: number): string;
export declare function getValidArrowMinuteOrSecond(value: string, step: number): string;
/**
 * Set minutes on a date object
 */
export declare function setMinutes(date: Date, value: string): Date;
/**
 * Set seconds on a date object
 */
export declare function setSeconds(date: Date, value: string): Date;
/**
 * Set hours on a date object (24-hour format)
 */
export declare function setHours(date: Date, value: string): Date;
/**
 * Set hours on a date object (12-hour format)
 */
export declare function set12Hours(date: Date, value: string, period: Period): Date;
/**
 * Set date by time picker type
 */
export declare function setDateByType(date: Date, value: string, type: TimePickerType, period?: Period): Date;
/**
 * Get date value by time picker type
 */
export declare function getDateByType(date: Date | null, type: TimePickerType): string;
/**
 * Get arrow value by time picker type
 */
export declare function getArrowByType(value: string, step: number, type: TimePickerType): string;
/**
 * Convert 12-hour format to 24-hour format
 * 12:00 PM is 12:00
 * 12:00 AM is 00:00
 */
export declare function convert12HourTo24Hour(hour: number, period: Period): number;
/**
 * Display 24-hour format in 12-hour representation
 */
export declare function display12HourValue(hours: number): string;
export {};
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