偷天换日

to engage in fraudulent activities (idiom) / skulduggery / to hoodwink people / to cheat sb audaciously

to steal / to pilfer / to snatch / thief / stealthily

day / sky / heaven

to exchange / to change (clothes etc) / to substitute / to switch / to convert (currency)

abbr. for 日本[Ri4 ben3], Japan

sun / day / date, day of the month