diff --git a/.gitmodules b/.gitmodules
index 3b3308b..22ccfe2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "Jupiter"]
 	path = src/Jupiter
 	url = https://github.com/JAJames/Jupiter.git
+[submodule "src/jessilib"]
+	path = src/jessilib
+	url = https://github.com/JAJames/jessilib.git
diff --git a/src/Bot/src/CMakeLists.txt b/src/Bot/src/CMakeLists.txt
index 322a346..11a163a 100644
--- a/src/Bot/src/CMakeLists.txt
+++ b/src/Bot/src/CMakeLists.txt
@@ -15,7 +15,7 @@ add_executable(Bot ${SOURCE_FILES})
 target_include_directories(Bot PUBLIC ../include)
 
 # Setup additionally needed libs
-target_link_libraries(Bot jupiter)
+target_link_libraries(Bot jupiter jessilib)
 
 # Enable exports
 set_target_properties(Bot PROPERTIES
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b920e7f..b0f936c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -3,8 +3,9 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 set(CMAKE_SHARED_LIBRARY_PREFIX)
 
-# Add jupiter and Bot
+# Add primary components (Jupiter, Bot, jessilib)
 add_subdirectory(Jupiter)
+add_subdirectory(jessilib)
 add_subdirectory(Bot)
 
 # Setup output paths for plugins
diff --git a/src/Plugins/RenX/RenX.Commands/RenX_Commands.cpp b/src/Plugins/RenX/RenX.Commands/RenX_Commands.cpp
index 9beba92..a66e919 100644
--- a/src/Plugins/RenX/RenX.Commands/RenX_Commands.cpp
+++ b/src/Plugins/RenX/RenX.Commands/RenX_Commands.cpp
@@ -19,6 +19,7 @@
 #include <forward_list>
 #include <functional>
 #include "Jupiter/Functions.h"
+#include "duration.hpp"
 #include "IRC_Bot.h"
 #include "RenX_Commands.h"
 #include "RenX_Core.h"
@@ -2344,7 +2345,8 @@ void AddBanIRCCommand::trigger(IRC_Bot *source, const Jupiter::ReadableString &c
 							return;
 						}
 
-						duration = std::chrono::seconds(Jupiter::ReferenceString::getWord(parameters, index++, ADDBAN_WHITESPACE).asUnsignedLongLong());
+						const auto& duration_str = Jupiter::ReferenceString::getWord(parameters, index++, ADDBAN_WHITESPACE);
+						duration = jessilib::duration_from_string(duration_str.ptr(), duration_str.ptr() + duration_str.size()).duration;
 					}
 					else if (word.equalsi("Game"_jrs))
 						flags |= RenX::BanDatabase::Entry::FLAG_TYPE_GAME;
@@ -2751,7 +2753,8 @@ void AddExemptionIRCCommand::trigger(IRC_Bot *source, const Jupiter::ReadableStr
 							return;
 						}
 
-						duration = std::chrono::seconds(Jupiter::ReferenceString::getWord(parameters, index++, ADDEXEMPTION_WHITESPACE).asUnsignedLongLong());
+						const auto& duration_str = Jupiter::ReferenceString::getWord(parameters, index++, ADDEXEMPTION_WHITESPACE);
+						duration = jessilib::duration_from_string(duration_str.ptr(), duration_str.ptr() + duration_str.size()).duration;
 					}
 					else if (word.equalsi("Ban"_jrs))
 						flags |= RenX::ExemptionDatabase::Entry::FLAG_TYPE_BAN;
diff --git a/src/jessilib b/src/jessilib
new file mode 160000
index 0000000..59d04d7
--- /dev/null
+++ b/src/jessilib
@@ -0,0 +1 @@
+Subproject commit 59d04d737ac4445ba96c9c117dcf8d95654719a3