入時

入 = 丿 + ㇏ : Mnemonic symbol: a big enter button.

入 = 丿 + ㇏ : Some aliens have disguised themselves as banana and float by the space station's bathroom. Rachel Rhinoceros sees them and because she loves bananas, she presses a big enter button with her finger to let them enter.

时 = 寸 + 日 : Mnemonic symbol: a giant pocket watch.

The sun (日) asks Sherlock Holmes (sh) out for a coffee in the space station's kitchen (Ø2). Looking at his pocket watch (时), Sherlock sees he has time, winks and "thumbs up" (寸).