import { z } from 'zod';
export declare const DayPeriodsValues: readonly ["PPM", "CD", "PPT", "N", "M"];
export declare const DayPeriodSchema: z.ZodEnum<["PPM", "CD", "PPT", "N", "M"]>;
export type DayPeriod = z.infer<typeof DayPeriodSchema>;
export interface DayPeriodTimeRange {
    end: string;
    start: string;
}
export declare const DAY_PERIOD_TIME_RANGES: Record<DayPeriod, DayPeriodTimeRange>;
export type DayPeriodLabels = Record<DayPeriod, {
    long: string;
    long_with_time: string;
    short: string;
    short_with_time: string;
}>;
export declare const DAY_PERIOD_LABELS: DayPeriodLabels;