/**
 * Common utilities for time-based operations in analysis tools.
 */
/**
 * Calculates the appropriate time interval for a given time range
 *
 * @param timeRange - Time range string (e.g. "24h", "7d", "30d")
 * @returns An appropriate interval string (e.g. "1h", "1d")
 */
export declare function calculateOptimalInterval(timeRange: string): string;
/**
 * Parses a duration string into milliseconds
 *
 * @param duration - Duration string (e.g. "30m", "24h", "7d")
 * @returns The duration in milliseconds
 */
export declare function parseDuration(duration: string): number;
/**
 * Divides a time range into before and after periods
 *
 * @param timeRange - Time range string (e.g. "7d")
 * @returns Object with start, mid, and end points as ISO strings
 */
export declare function divideTimeRange(timeRange: string): {
    startPoint: string;
    midPoint: string;
    endPoint: string;
};