diff --git a/README.md b/README.md
index 9c59f36..948a53d 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,8 @@ underscores instead of spaces.
 the current working directory.
 -l PATH      Write debug log to specified path.
 -m           Generate a minimized sheet without WFEs and embassies
+-maj LENGTH  Specify custom length of major update, in seconds.
+-min LENGTH  Specify custom length of minor update, in seconds.
 
 If run without arguments, Spyglass runs in interactive mode and outputs to its
 working directory.
diff --git a/Spyglass-cli.py b/Spyglass-cli.py
index 720df64..89cae01 100644
--- a/Spyglass-cli.py
+++ b/Spyglass-cli.py
@@ -87,6 +87,8 @@ def download_dump() -> None:
                   the current working directory.
      -l PATH      Write debug log to specified path.
      -m           Generate a minimized sheet without WFEs and embassies
+     -maj LENGTH  Specify custom length of major update, in seconds.
+     -min LENGTH  Specify custom length of minor update, in seconds.
     """
     )
     print(
@@ -109,6 +111,14 @@ def download_dump() -> None:
 if "-n" in argv:
     interactive = False
     UAgent = argv[argv.index("-n") + 1]
+
+    if "-min" in argv:
+        MinorTime = int(argv[argv.index("-min") + 1])
+    if "-maj" in argv:
+        MajorTime = int(argv[argv.index("-maj") + 1])
+    if "-min" in argv or "-maj" in argv:
+        SpeedOverride = True
+
 else:
     print(f"Spyglass {VERSION}: Generate NationStates region update timesheets.")
     UAgent = input("Nation Name: ")
@@ -444,4 +454,4 @@ def download_dump() -> None:
 write_log(f"INFO Successfully saved to {filename}")
 write_log(f"INFO Spyglass run complete. Exiting...")
 
-raise SystemExit(0)
+raise SystemExit(0)
\ No newline at end of file