import { Locale } from 'date-fns';
export type EditingBound = 'start' | 'end';
export type DatePeriodGranularity = 'day' | 'minute';
export type RangeUpdateInput = {
    editing: EditingBound;
    picked: Date;
    startDate: Date | null;
    endDate: Date | null;
    granularity?: DatePeriodGranularity;
};
export type RangeUpdateResult = {
    start: Date | null;
    end: Date | null;
    startChanged: boolean;
    endChanged: boolean;
};
export type TimeChangeInput = {
    editing: EditingBound;
    time: Date;
    startDate: Date | null;
    endDate: Date | null;
};
export declare const computeRangeUpdate: (input: RangeUpdateInput) => RangeUpdateResult;
export declare const applyTimeChange: (input: TimeChangeInput) => RangeUpdateResult;
export declare const resolveDateFnsLocale: (language?: string | null) => Locale;