The morning sun never lasts a day

Similar English and Irish sayings:

Evening red and morning grey help the traveller on his way; evening grey and morning red bring down rain upon his head Evening red and morning grey help the traveller on his way; evening grey and morning red bring down rain upon his head
He who sleeps all the morning, may go a begging all the day after He who sleeps all the morning, may go a begging all the day after
On Monday morning don’t be looking for Saturday’s night On Monday morning don’t be looking for Saturday’s night

Proverbs and English sayings