diff --git a/conversions/time_conversions.py b/conversions/time_conversions.py
new file mode 100644
index 000000000000..28dcdef28b22
--- /dev/null
+++ b/conversions/time_conversions.py
@@ -0,0 +1,136 @@
+def seconds_to_minutes(seconds: float, ndigits: int = 2) -> float:
+    """
+    Convert seconds to minutes and round it to the specified number of decimal places.
+
+    >>> seconds_to_minutes(60)
+    1.0
+    >>> seconds_to_minutes(150)
+    2.5
+    >>> seconds_to_minutes(3600)
+    60.0
+    >>> seconds_to_minutes(65.4321, 3)
+    1.091
+    >>> seconds_to_minutes("120")
+    2.0
+    >>> seconds_to_minutes("seconds")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'seconds'
+    """
+    return round(float(seconds) / 60, ndigits)
+
+
+def minutes_to_seconds(minutes: float, ndigits: int = 2) -> float:
+    """
+    Convert minutes to seconds and round it to the specified number of decimal places.
+
+    >>> minutes_to_seconds(1)
+    60.0
+    >>> minutes_to_seconds(2.5)
+    150.0
+    >>> minutes_to_seconds(60)
+    3600.0
+    >>> minutes_to_seconds(1.09, 3)
+    65.4
+    >>> minutes_to_seconds("2")
+    120.0
+    >>> minutes_to_seconds("minutes")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'minutes'
+    """
+    return round(float(minutes) * 60, ndigits)
+
+
+def hours_to_minutes(hours: float, ndigits: int = 2) -> float:
+    """
+    Convert hours to minutes and round it to the specified number of decimal places.
+
+    >>> hours_to_minutes(1)
+    60.0
+    >>> hours_to_minutes(2.5)
+    150.0
+    >>> hours_to_minutes(24)
+    1440.0
+    >>> hours_to_minutes(1.5, 3)
+    90.0
+    >>> hours_to_minutes("2")
+    120.0
+    >>> hours_to_minutes("hours")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'hours'
+    """
+    return round(float(hours) * 60, ndigits)
+
+
+def minutes_to_hours(minutes: float, ndigits: int = 2) -> float:
+    """
+    Convert minutes to hours and round it to the specified number of decimal places.
+
+    >>> minutes_to_hours(60)
+    1.0
+    >>> minutes_to_hours(150)
+    2.5
+    >>> minutes_to_hours(1440)
+    24.0
+    >>> minutes_to_hours(90, 3)
+    1.5
+    >>> minutes_to_hours("120")
+    2.0
+    >>> minutes_to_hours("minutes")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'minutes'
+    """
+    return round(float(minutes) / 60, ndigits)
+
+
+def days_to_hours(days: float, ndigits: int = 2) -> float:
+    """
+    Convert days to hours and round it to the specified number of decimal places.
+
+    >>> days_to_hours(1)
+    24.0
+    >>> days_to_hours(0.5)
+    12.0
+    >>> days_to_hours(7)
+    168.0
+    >>> days_to_hours(3.5, 3)
+    84.0
+    >>> days_to_hours("2")
+    48.0
+    >>> days_to_hours("days")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'days'
+    """
+    return round(float(days) * 24, ndigits)
+
+
+def hours_to_days(hours: float, ndigits: int = 2) -> float:
+    """
+    Convert hours to days and round it to the specified number of decimal places.
+
+    >>> hours_to_days(24)
+    1.0
+    >>> hours_to_days(12)
+    0.5
+    >>> hours_to_days(168)
+    7.0
+    >>> hours_to_days(84, 3)
+    3.5
+    >>> hours_to_days("48")
+    2.0
+    >>> hours_to_days("hours")
+    Traceback (most recent call last):
+        ...
+    ValueError: could not convert string to float: 'hours'
+    """
+    return round(float(hours) / 24, ndigits)
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()