diff --git a/src/dnidatetime/constants.py b/src/dnidatetime/constants.py
index 8814949..8bcc95a 100644
--- a/src/dnidatetime/constants.py
+++ b/src/dnidatetime/constants.py
@@ -5,6 +5,7 @@ from datetime import datetime, timezone
 from typing import Tuple, TypedDict
 
 
+#: Type alias for a seven-integer tuple used in a datetime timestamp.
 DniDateTimeTuple = Tuple[int, int, int, int, int, int, int]
 
 
@@ -16,22 +17,22 @@ class DniUnitType(TypedDict):
     total_pro: int
 
 
-# All the units of time in the D'Ni culture from largest to smallest.
-#
-# Hahr - The D'Ni eqivalent of an earth year.
-# Vailee - The D'Ni eqivalent of an earth month, 10 total in each hahr.
-# Yahr - The D'Ni equivalent of an earth day, 29 total in each vailee.
-# Gahrtahvo - 5 total in each yahr.
-# Pahrtahvo - The D'Ni equivalent of an earth hour, 5 total in each gahrtahvo
-#             and 25 total in each yahr. Not used in calculations, but can
-#             be used to show a different method of D'Ni time.
-# Tahvo - 5 total in each pahrtahvo and 25 total in each gahrtahvo.
-# Gorahn - 25 total in each tahvo.
-# Prorahn - The D'Ni equivalent of an earth second, 25 total in each gorahn.
-#
-# Limit: Maximum amount before rollover (ie. 60 seconds in 1 minute)
-# Total Prorahntee: A "prorahn" is the smallest unit of time and is
-#                   used in the calcuation of the other units.
+#: All the units of time in the D'Ni culture from largest to smallest.
+#:
+#: Hahr - The D'Ni eqivalent of an earth year.
+#: Vailee - The D'Ni eqivalent of an earth month, 10 total in each hahr.
+#: Yahr - The D'Ni equivalent of an earth day, 29 total in each vailee.
+#: Gahrtahvo - 5 total in each yahr.
+#: Pahrtahvo - The D'Ni equivalent of an earth hour, 5 total in each gahrtahvo
+#:             and 25 total in each yahr. Not used in calculations, but can
+#:             be used to show a different method of D'Ni time.
+#: Tahvo - 5 total in each pahrtahvo and 25 total in each gahrtahvo.
+#: Gorahn - 25 total in each tahvo.
+#: Prorahn - The D'Ni equivalent of an earth second, 25 total in each gorahn.
+#:
+#: Limit: Maximum amount before rollover (ie. 60 seconds in 1 minute)
+#: Total Prorahntee: A "prorahn" is the smallest unit of time and is
+#:                   used in the calcuation of the other units.
 DNI_UNITS: OrderedDict[str, DniUnitType] = OrderedDict(
     [
         ("hahr", {"min": 7654, "max": 17655, "total_pro": 22656250}),
@@ -44,27 +45,24 @@ DNI_UNITS: OrderedDict[str, DniUnitType] = OrderedDict(
     ]
 )
 
-# A hahr's length is equal to the Mean Solar Tropical Year for 1995 in
-# milliseconds.
+#: A hahr's length is equal to the Mean Solar Tropical Year for 1995 in
+#: milliseconds.
 MS_PER_HAHR = 31556925216
 
-# A prorahn's length in milliseconds.
-# Some previous [wrong] calculations:
-#     JS = 1392.8573857142859
-#     Python = 1392.8573888441379
+#: A prorahn's length in milliseconds.
 MS_PER_PRORAHN = 1392.85737275
 
-# Just as the UNIX Epoch is based on midnight on 1-1-1970, the D'Ni Epoch
-# is based on the timestamp of the original MYST Hypercard file:
-# April 21, 1991 9:54AM PST (16:54 UTC) --> Leefo 1, 9647 00:00:00:00
+#: Just as the UNIX Epoch is based on midnight on 1-1-1970, the D'Ni Epoch
+#: is based on the timestamp of the original MYST Hypercard file:
+#: April 21, 1991 9:54AM PST (16:54 UTC) --> Leefo 1, 9647 00:00:00:00
 EARTH_EPOCH = datetime(1970, 1, 1, tzinfo=timezone.utc)
 DNI_EPOCH_EDT = datetime(1991, 4, 21, 16, 54, 0, tzinfo=timezone.utc)  # Earth
 DNI_EPOCH_HAHR = 9647
 
-# Converted leap seconds to ms, but adjusted for the UNIX epoch instead.
-# https://data.iana.org/time-zones/data/leap-seconds.list
-#     delta_ms_1900_to_1970 = -2208988800000
-#     leap_ms = leap_sec_from_ietf * 1000 + delta_ms_1900_to_1970
+#: Converted leap seconds to ms, but adjusted for the UNIX epoch instead.
+#: https://data.iana.org/time-zones/data/leap-seconds.list
+#:     delta_ms_1900_to_1970 = -2208988800000
+#:     leap_ms = leap_sec_from_ietf * 1000 + delta_ms_1900_to_1970
 LEAP_MS_FROM_EPOCH = [
     63072000000,        # 1 Jan 1972
     78796800000,        # 1 Jul 1972
@@ -96,17 +94,15 @@ LEAP_MS_FROM_EPOCH = [
     1483228800000,      # 1 Jan 2017
 ]
 
-# A carry-over from the Python datetime module for timedelta objects. Might
-# need to adjust if it overflows other values, but it should be okay.
+#: A carry-over from the Python datetime module for timedelta objects. Might
+#: need to adjust if it overflows other values, but it should be okay.
 MAX_DNI_DELTA_YAHRTEE = 999999999
 
-# DniDate.max.to_ordinal()
-# (For whatever reason, 5119863 was the former value and I can't figure why.
-# Noting it here in case I need it for something.)
+#: DniDate.max.to_ordinal()
 MIN_DNI_ORDINAL = 1
 MAX_DNI_ORDINAL = 2900494
 
-# The names of the 10 vailee in a hahr.
+#: The names of the 10 vailee in a hahr.
 VAILEE_NAMES = [
     "Leefo",
     "Leebro",
@@ -120,5 +116,5 @@ VAILEE_NAMES = [
     "Leenovoo",
 ]
 
-# The number of yahrtee (days) before each consectutive vailee (month).
+#: The number of yahrtee (days) before each consectutive vailee (month).
 YAHRTEE_BEFORE_VAILEE = [-1, 0, 29, 58, 87, 116, 145, 174, 203, 232, 261]