Convert an array of datetimes into an array of strings with UTC timezone in Python

To convert an array of datetimes into an array of strings, use the numpy.datetime_as_string() method in Python Numpy. The method returns an array of strings the same shape as the input array. The first parameter is the array of UTC timestamps to format. The second parameter is the "timezone", the Timezone information to use when displaying the datetime. If ‘UTC’, end with a Z to indicate UTC time.

Steps

At first, import the required library −

import numpy as np

Create an array of datetime. The 'M' type specifies datetime −

arr = np.arange('2022-02-20T03:25', 6*60, 60, dtype='M8[m]')

Displaying our array −

print("Array...
",arr)

Get the datatype −

print("
Array datatype...
",arr.dtype)

Get the dimensions of the Array −

print("
Array Dimensions...
",arr.ndim)

Get the shape of the Array −

print("
Our Array Shape...
",arr.shape)

Get the number of elements of the Array −

print("
Number of elements in the Array...
",arr.size)

To convert an array of datetimes into an array of strings, use the numpy.datetime_as_string() method in Python Numpy. The method returns an array of strings the same shape as the input array. The first parameter is the array of UTC timestamps to format. The second parameter is the "timezone", the Timezone information to use when displaying the datetime. If ‘UTC’, end with a Z to indicate UTC time. If ‘local’, convert to the local timezone first, and suffix with a +-#### timezone offset. If a tzinfo object, then do as with ‘local’, but use the specified timezone −

print("
Result...
",np.datetime_as_string(arr, timezone = 'UTC'))

Example

import numpy as np

# Create an array of datetime
# The 'M' type specifies datetime
arr = np.arange('2022-02-20T03:25', 6*60, 60, dtype='M8[m]')

# Displaying our array
print("Array...
",arr)

# Get the datatype
print("
Array datatype...
",arr.dtype)

# Get the dimensions of the Array
print("
Array Dimensions...
",arr.ndim)

# Get the shape of the Array
print("
Our Array Shape...
",arr.shape)

# Get the number of elements of the Array
print("
Number of elements in the Array...
",arr.size)

# To convert an array of datetimes into an array of strings, use the numpy.datetime_as_string() method in Python Numpy
# The method returns an array of strings the same shape as the input array

print("
Result...
",np.datetime_as_string(arr, timezone = 'UTC'))

Output

Array...
['2022-02-20T03:25' '2022-02-20T04:25' '2022-02-20T05:25' '2022-02-20T06:25' '2022-02-20T07:25' '2022-02-20T08:25']

Array datatype...
datetime64[m]

Array Dimensions...
1

Our Array Shape...
(6,)

Number of elements in the Array...
6

Result...
['2022-02-20T03:25Z' '2022-02-20T04:25Z' '2022-02-20T05:25Z' '2022-02-20T06:25Z' '2022-02-20T07:25Z' '2022-02-20T08:25Z']

AmitDiwan

Updated on 24-Feb-2022 10:08:49

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