export interface SlotLocalDateTime {
    date: string;
    time: string;
}
export interface SlotTimeRangeInput {
    startsAt: string | Date;
    endsAt?: string | Date | null;
    timezone: string;
}
export interface LocalToInstantInput {
    date: string;
    time: string;
    timezone: string;
}
export declare function instantToSlotLocal(instant: string | Date, timezone: string): SlotLocalDateTime;
export declare function slotLocalStart(slot: SlotTimeRangeInput): SlotLocalDateTime;
export declare function slotLocalEnd(slot: SlotTimeRangeInput): SlotLocalDateTime | null;
export declare function slotEndDateLocal(slot: SlotTimeRangeInput): string | null;
export declare function localToInstant(input: LocalToInstantInput): string;