Date::Manip defines a day as 24 hours which DOES lead to unexpected results... but it DOES lead to unambiguous and correct results.

For those interested, DateTime has no such false equivalences. DateTime can

• Add one year, which is not necessarily the same as adding 365 days (which it can also do).
• Add one month, which is not necessarily the same as adding 30 days (which it can also do).
• Add one day, which is not necessarily the same as adding 24 hours (which it can also do).
• Add one minute, which is not necessarily the same as adding 60 seconds (which it can also do).

On the other hand,

• A year is always 12 months.
• A week is always 7 days.
• An hour is always 60 minute.
• A second is always 1,000,000,000 nanoseconds.

The passage I quoted makes it sound like Date::Manip doesn't correctly handle some or all of those. Please let me know if it can.

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