Get total number of hours from a Pandas Timedelta?
PythonPython 3.xPandasDatetimePython Problem Overview
How can I get the total number of hours in a Pandas timedelta?
For example:
>>> td = pd.Timedelta('1 days 2 hours')
>>> td.get_total_hours()
26
Note: as per the documentation, the .hours attribute will return the hours component:
>>> td.hours
2
Python Solutions
Solution 1 - Python
Just find out how many timedeltas of 1 hour fit into it:
import numpy as np
>> td / np.timedelta64(1, 'h')
26.0
Solution 2 - Python
Just try to show why pandas returns 2 hours.
import pandas as pd
td = pd.Timedelta('1 days 2 hours')
td.components
Out[45]: Components(days=1, hours=2, minutes=0, seconds=0, milliseconds=0, microseconds=0, nanoseconds=0)
td / pd.Timedelta('1 hour')
Out[46]: 26.0
Solution 3 - Python
I am getting the time delta in seconds and dividing it by 3600 to get hours
round(td.total_seconds() / 3600) .
When I tested in jupyter notebook this approach works faster
%timeit td / np.timedelta64(1, 'h')
The slowest run took 19.10 times longer than the fastest. This could mean that an intermediate result is being cached.
100000 loops, best of 3: 4.58 µs per loop
%timeit round(td.total_seconds() / 3600)
The slowest run took 18.08 times longer than the fastest. This could mean that an intermediate result is being cached.
1000000 loops, best of 3: 401 ns per loop
Solution 4 - Python
So much simpler to use Pandas' Timedelta components.
>>> td = pd.Timedelta('1 days 2 hours')
>>> td.components.hours
2