How to get nanoseconds from pandas.Timedelta object

If you have a pandas.Timedelta object, you can use Timedelta.total_seconds() to get the seconds as a floating-point number with nanosecond resolution and then multiply with one billion (1e9, the number of nanoseconds in one second) to obtain the number of nanoseconds in the Timedelta:

timedelta.total_seconds() * 1e9

In case you want an integer, use

int(round(timedelta.total_seconds() * 1e9))

Note that using round() is required here to avoid errors due to floating point precision.

or use this function definition:

def nanoseconds_from_timedelta(timedelta):
    """Compute the nanoseconds in a timedelta as floating-point number"""
    return timedelta.total_seconds() * 1e9

def nanoseconds_from_timedelta_integer(timedelta):
    """Compute the nanoseconds in a timedelta as integer number"""
    return int(round(timedelta.total_seconds() * 1e9))

# Usage example:
ns = nanoseconds_from_timedelta(timedelta)
print(ns) # Prints 2000751999.9999998

ns = nanoseconds_from_timedelta_integer(timedelta)
print(ns) # Prints 2000752000