diff --git a/src/strgen/strgen_base.cpp b/src/strgen/strgen_base.cpp
index f4d888c2b2..e021a9b1ff 100644
--- a/src/strgen/strgen_base.cpp
+++ b/src/strgen/strgen_base.cpp
@@ -377,34 +377,6 @@ void EmitPlural(Buffer *buffer, char *buf, int)
 	EmitWordList(buffer, words, nw);
 }
 
-/**
- * Handle the selection of timekeeping units based on the timekeeping setting.
- * This uses the string control character {TKM [value if calendar] [value if wallclock]}, e.g. {TKM month minute}.
- * @param buffer The output buffer
- * @param buf    The input buffer
- * @param        Unused
- */
-void EmitTKM(Buffer* buffer, char* buf, int)
-{
-	/* The correct number of words is 2, but we'll check for more in case of typos. */
-	std::vector<const char *> words(3, nullptr);
-
-	/* Parse each string. */
-	uint nw = 0;
-	for (nw = 0; nw < 3; nw++) {
-		words[nw] = ParseWord(&buf);
-		if (words[nw] == nullptr) break;
-	}
-
-	/* Warn about the wrong number of parameters. */
-	if (nw != 2) {
-		StrgenFatal("%s: Invalid number of TKM options. Expecting %d, found %d.", _cur_ident, 2, nw);
-	}
-
-	buffer->AppendUtf8(SCC_TIMEKEEPING_MODE_LIST);
-	EmitWordList(buffer, words, 2);
-}
-
 void EmitGender(Buffer *buffer, char *buf, int)
 {
 	int argidx = _cur_argidx;
diff --git a/src/strings.cpp b/src/strings.cpp
index a70ddf57f4..e75e7fac13 100644
--- a/src/strings.cpp
+++ b/src/strings.cpp
@@ -1443,11 +1443,6 @@ static void FormatString(StringBuilder &builder, const char *str_arg, StringPara
 					break;
 				}
 
-				case SCC_TIMEKEEPING_MODE_LIST: { // {TKM}
-					str = ParseStringChoice(str, (uint8_t)TimerGameEconomy::UsingWallclockUnits(_game_mode == GM_MENU), builder);
-					break;
-				}
-
 				case SCC_COMPANY_NAME: { // {COMPANY}
 					const Company *c = Company::GetIfValid(args.GetNextParameter<CompanyID>());
 					if (c == nullptr) break;
diff --git a/src/table/control_codes.h b/src/table/control_codes.h
index c79264a265..d2022c3cec 100644
--- a/src/table/control_codes.h
+++ b/src/table/control_codes.h
@@ -69,7 +69,6 @@ enum StringControlCode {
 	SCC_UNITS_MONTHS_OR_MINUTES,
 	SCC_UNITS_YEARS_OR_PERIODS,
 	SCC_UNITS_YEARS_OR_MINUTES,
-	SCC_TIMEKEEPING_MODE_LIST,
 
 	SCC_DATE_TINY,
 	SCC_DATE_SHORT,
diff --git a/src/table/strgen_tables.h b/src/table/strgen_tables.h
index 4685eaa627..0a5bf07531 100644
--- a/src/table/strgen_tables.h
+++ b/src/table/strgen_tables.h
@@ -30,7 +30,6 @@ struct CmdStruct {
 };
 
 extern void EmitSingleChar(Buffer *buffer, char *buf, int value);
-extern void EmitTKM(Buffer* buffer, char* buf, int value);
 extern void EmitPlural(Buffer *buffer, char *buf, int value);
 extern void EmitGender(Buffer *buffer, char *buf, int value);
 
@@ -94,8 +93,6 @@ static const CmdStruct _cmd_structs[] = {
 	{"UNITS_YEARS_OR_PERIODS",  EmitSingleChar, SCC_UNITS_YEARS_OR_PERIODS,  1,  0, C_NONE},
 	{"UNITS_YEARS_OR_MINUTES",  EmitSingleChar, SCC_UNITS_YEARS_OR_MINUTES,  1,  0, C_NONE},
 
-	{"TKM",                     EmitTKM,  0,                      0, -1, C_DONTCOUNT}, // Timekeeping mode string selection, e.g. "{TKM month minute}"
-
 	{"P",                 EmitPlural,     0,                      0, -1, C_DONTCOUNT}, // plural specifier
 	{"G",                 EmitGender,     0,                      0, -1, C_DONTCOUNT}, // gender specifier