1 bitcoin = 1 bitcoin, of course. But 1 bitcoin also equals 1/450th of 1 day (there are currently 450 bitcoin mined per day). That means 1 bitcoin = 0.0533 hours. Or 1 bitcoin = 3.2 minutes. But these time equivalents double every 4 years.
This means there is a point in the future where 1 bitcoin = 1 day, 1 week, 1 year, your age, etc. But it’ll a while…9 more halvings before 1 bitcoin > 1 day.