import type { Cell } from '@fortune-sheet/core';
import type { WorkSpreadsheetDateSystem } from '../work-types';
import type { SpreadsheetCommandContext, SpreadsheetEditorCommands } from './spreadsheet-command-controller';
import { type OfficeEditorExtension } from './office-editor-extension';
export type SpreadsheetDateTimeKind = 'date' | 'time';
export interface SpreadsheetDateTimeEntry {
    format: NonNullable<Cell['ct']> & {
        fa: string;
        t: string;
    };
    formulaBarValue: string;
    value: number;
}
export declare function spreadsheetDateTimeEntry(kind: SpreadsheetDateTimeKind, now: Date, dateSystem?: WorkSpreadsheetDateSystem): SpreadsheetDateTimeEntry | null;
export declare function createSpreadsheetDateTimeExtension(): OfficeEditorExtension<SpreadsheetCommandContext, SpreadsheetEditorCommands>;