/**
 * Date utility functions for health data
 */
/**
 * Get today's date in the user's timezone as YYYY-MM-DD
 */
export declare function getTodayInUserTimezone(): string;
/**
 * Get the start and end timestamps for a given date string
 * @param dateString - Date in YYYY-MM-DD format
 * @returns Object with startTime and endTime in milliseconds
 */
export declare function getDayBoundsMs(dateString: string): {
    startTime: number;
    endTime: number;
};
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