/**
 * Calculates the difference in hours between two timestamps
 * @param startTime ISO timestamp string
 * @param endTime ISO timestamp string
 * @param timezoneOffset timezone offset in hours
 * @returns number representing hours difference, rounded to 3 decimal places
 */
export declare function calculateTimeDifferenceInHours(startTime: string | null | undefined, endTime: string | null | undefined, timezoneOffset: number): number;
export declare const getSecondsOfDay: (timestamp: string | null) => string | null;
/**
 * Apply timezone offsets to specified datetime fields in an object
 * @param item The object to transform
 * @param fields The fields to apply timezone offset to
 * @param timezoneOffset The timezone offset to apply
 * @returns The transformed object
 */
export declare const applyTimezoneOffsetsToFields: (item: Record<string, string>, fields: string[], timezoneOffset: number) => Record<string, string>;
/**
 * @deprecated Use {@link ensureCompanyInfo} from the MM API module; name retained for backward compatibility.
 *
 * Ensures company info (including IANA timezone) is loaded with retries.
 * Sync readers {@link getCachedTimezoneOffset} / {@link getCachedTimezoneName} resolve company info
 * from in-memory cache or persisted job-state (`companyInfo`); offset is derived from the IANA name at read time, not stored.
 *
 * @param params.maxRetries Maximum number of retry attempts
 * @param params.retryIntervalMs Time to wait between retries in milliseconds
 */
export declare const getTimezoneOffsetAndPersist: (params?: import("../services/mm-api-service/company-info.js").EnsureCompanyInfoParams) => Promise<void>;
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