Hard time and Rainy day

Hard time noun - A difficulty that can be overcome with effort.

Rainy day and hard time are semantically related. in pain topic. In some cases you can use "Rainy day" instead a noun phrase "Hard time", when it comes to topics like dark cloud.

Rainy day noun - A (future) time of financial need.

Hard time and rainy day are semantically related. Sometimes you can use "Hard time" instead a noun phrase "Rainy day".