diff --git a/scwx-qt/source/scwx/qt/config/radar_site.cpp b/scwx-qt/source/scwx/qt/config/radar_site.cpp
index 6feadde9..e3d466e8 100644
--- a/scwx-qt/source/scwx/qt/config/radar_site.cpp
+++ b/scwx-qt/source/scwx/qt/config/radar_site.cpp
@@ -4,7 +4,6 @@
 #include <scwx/common/sites.hpp>
 #include <scwx/util/logger.hpp>
 
-#include <format>
 #include <shared_mutex>
 #include <unordered_map>
 
@@ -118,18 +117,18 @@ std::string RadarSite::location_name() const
 
    if (p->country_ == "USA")
    {
-      locationName = std::format("{}, {}", p->place_, p->state_);
+      locationName = fmt::format("{}, {}", p->place_, p->state_);
    }
    else if (std::all_of(p->state_.cbegin(),
                         p->state_.cend(),
                         [](char c) { return std::isdigit(c); }))
    {
-      locationName = std::format("{}, {}", p->place_, p->country_);
+      locationName = fmt::format("{}, {}", p->place_, p->country_);
    }
    else
    {
       locationName =
-         std::format("{}, {}, {}", p->place_, p->state_, p->country_);
+         fmt::format("{}, {}, {}", p->place_, p->state_, p->country_);
    }
 
    return locationName;
diff --git a/scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp b/scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp
index 293e69d5..8e064f7a 100644
--- a/scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp
+++ b/scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp
@@ -254,14 +254,14 @@ std::string ProviderManager::name() const
 
    if (group_ == common::RadarProductGroup::Level3)
    {
-      name = std::format("{}, {}, {}",
+      name = fmt::format("{}, {}, {}",
                          radarId_,
                          common::GetRadarProductGroupName(group_),
                          product_);
    }
    else
    {
-      name = std::format(
+      name = fmt::format(
          "{}, {}", radarId_, common::GetRadarProductGroupName(group_));
    }
 
diff --git a/scwx-qt/source/scwx/qt/map/map_widget.cpp b/scwx-qt/source/scwx/qt/map/map_widget.cpp
index 0b4d56ba..e3376ac7 100644
--- a/scwx-qt/source/scwx/qt/map/map_widget.cpp
+++ b/scwx-qt/source/scwx/qt/map/map_widget.cpp
@@ -18,6 +18,7 @@
 #include <backends/imgui_impl_opengl3.h>
 #include <backends/imgui_impl_qt.hpp>
 #include <boost/uuid/random_generator.hpp>
+#include <fmt/format.h>
 #include <imgui.h>
 #include <QApplication>
 #include <QColor>
@@ -89,7 +90,7 @@ public:
 
       // Create ImGui Context
       static size_t currentMapId_ {0u};
-      imGuiContextName_ = std::format("Map {}", ++currentMapId_);
+      imGuiContextName_ = fmt::format("Map {}", ++currentMapId_);
       imGuiContext_ =
          model::ImGuiContextModel::Instance().CreateContext(imGuiContextName_);
 
diff --git a/scwx-qt/source/scwx/qt/model/radar_site_model.cpp b/scwx-qt/source/scwx/qt/model/radar_site_model.cpp
index bc059953..1993c75a 100644
--- a/scwx-qt/source/scwx/qt/model/radar_site_model.cpp
+++ b/scwx-qt/source/scwx/qt/model/radar_site_model.cpp
@@ -5,8 +5,6 @@
 #include <scwx/common/geographic.hpp>
 #include <scwx/util/logger.hpp>
 
-#include <format>
-
 namespace scwx
 {
 namespace qt
diff --git a/scwx-qt/source/scwx/qt/settings/palette_settings.cpp b/scwx-qt/source/scwx/qt/settings/palette_settings.cpp
index d25c7236..711792c2 100644
--- a/scwx-qt/source/scwx/qt/settings/palette_settings.cpp
+++ b/scwx-qt/source/scwx/qt/settings/palette_settings.cpp
@@ -2,10 +2,10 @@
 #include <scwx/qt/settings/settings_variable.hpp>
 #include <scwx/qt/util/color.hpp>
 
-#include <format>
 #include <regex>
 
 #include <boost/gil.hpp>
+#include <fmt/format.h>
 
 namespace scwx
 {
@@ -74,8 +74,8 @@ public:
       for (auto& alert : kAlertColors_)
       {
          std::string phenomenonCode = awips::GetPhenomenonCode(alert.first);
-         std::string activeName     = std::format("{}-active", phenomenonCode);
-         std::string inactiveName = std::format("{}-inactive", phenomenonCode);
+         std::string activeName     = fmt::format("{}-active", phenomenonCode);
+         std::string inactiveName = fmt::format("{}-inactive", phenomenonCode);
 
          auto activeResult = activeAlertColor_.emplace(
             alert.first, SettingsVariable<std::string> {activeName});
diff --git a/scwx-qt/source/scwx/qt/types/text_event_key.cpp b/scwx-qt/source/scwx/qt/types/text_event_key.cpp
index f9ac29dc..bebf6f63 100644
--- a/scwx-qt/source/scwx/qt/types/text_event_key.cpp
+++ b/scwx-qt/source/scwx/qt/types/text_event_key.cpp
@@ -1,8 +1,7 @@
 #include <scwx/qt/types/text_event_key.hpp>
 
-#include <format>
-
 #include <boost/container_hash/hash.hpp>
+#include <fmt/format.h>
 
 namespace scwx
 {
@@ -15,7 +14,7 @@ static const std::string logPrefix_ = "scwx::qt::types::text_event_key";
 
 std::string TextEventKey::ToFullString() const
 {
-   return std::format("{} {} {} {:04}",
+   return fmt::format("{} {} {} {:04}",
                       officeId_,
                       awips::GetPhenomenonText(phenomenon_),
                       awips::GetSignificanceText(significance_),
@@ -24,7 +23,7 @@ std::string TextEventKey::ToFullString() const
 
 std::string TextEventKey::ToString() const
 {
-   return std::format("{}.{}.{}.{:04}",
+   return fmt::format("{}.{}.{}.{:04}",
                       officeId_,
                       awips::GetPhenomenonCode(phenomenon_),
                       awips::GetSignificanceCode(significance_),
diff --git a/scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp b/scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp
index 066ba59d..18011b7f 100644
--- a/scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp
+++ b/scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp
@@ -6,6 +6,7 @@
 #include <imgui.h>
 #include <backends/imgui_impl_opengl3.h>
 #include <backends/imgui_impl_qt.hpp>
+#include <fmt/format.h>
 
 namespace scwx
 {
@@ -23,7 +24,7 @@ public:
    {
       // Create ImGui Context
       static size_t currentIndex_ {0u};
-      contextName_ = std::format("ImGui Debug {}", ++currentIndex_);
+      contextName_ = fmt::format("ImGui Debug {}", ++currentIndex_);
       context_ =
          model::ImGuiContextModel::Instance().CreateContext(contextName_);
       currentContext_ = context_;
diff --git a/scwx-qt/source/scwx/qt/ui/settings_dialog.cpp b/scwx-qt/source/scwx/qt/ui/settings_dialog.cpp
index 5a16f508..5eb9cceb 100644
--- a/scwx-qt/source/scwx/qt/ui/settings_dialog.cpp
+++ b/scwx-qt/source/scwx/qt/ui/settings_dialog.cpp
@@ -12,8 +12,7 @@
 #include <scwx/util/logger.hpp>
 #include <scwx/util/threads.hpp>
 
-#include <format>
-
+#include <fmt/format.h>
 #include <QColorDialog>
 #include <QFileDialog>
 #include <QToolButton>
@@ -622,7 +621,7 @@ void SettingsDialogImpl::SetBackgroundColor(const std::string& value,
                                             QFrame*            frame)
 {
    frame->setStyleSheet(
-      QString::fromStdString(std::format("background-color: {}", value)));
+      QString::fromStdString(fmt::format("background-color: {}", value)));
 }
 
 void SettingsDialogImpl::UpdateRadarDialogLocation(const std::string& id)
@@ -676,7 +675,7 @@ void SettingsDialogImpl::ResetToDefault()
 std::string SettingsDialogImpl::RadarSiteLabel(
    std::shared_ptr<config::RadarSite>& radarSite)
 {
-   return std::format("{} ({})", radarSite->id(), radarSite->location_name());
+   return fmt::format("{} ({})", radarSite->id(), radarSite->location_name());
 }
 
 } // namespace ui
diff --git a/scwx-qt/source/scwx/qt/util/color.cpp b/scwx-qt/source/scwx/qt/util/color.cpp
index e7729663..c1246843 100644
--- a/scwx-qt/source/scwx/qt/util/color.cpp
+++ b/scwx-qt/source/scwx/qt/util/color.cpp
@@ -1,6 +1,6 @@
 #include <scwx/qt/util/color.hpp>
 
-#include <format>
+#include <fmt/format.h>
 #include <QColor>
 
 namespace scwx
@@ -16,7 +16,7 @@ static const std::string logPrefix_ = "scwx::qt::util::color";
 
 std::string ToArgbString(const boost::gil::rgba8_pixel_t& color)
 {
-   return std::format(
+   return fmt::format(
       "#{:02x}{:02x}{:02x}{:02x}", color[3], color[0], color[1], color[2]);
 }
 
diff --git a/scwx-qt/source/scwx/qt/util/font.cpp b/scwx-qt/source/scwx/qt/util/font.cpp
index 25ccc27d..0a94c8a0 100644
--- a/scwx-qt/source/scwx/qt/util/font.cpp
+++ b/scwx-qt/source/scwx/qt/util/font.cpp
@@ -13,6 +13,7 @@
 #include <unordered_map>
 
 #include <boost/timer/timer.hpp>
+#include <fmt/format.h>
 #include <imgui.h>
 #include <QFile>
 #include <QFileInfo>
@@ -273,7 +274,7 @@ void FontImpl::CreateImGuiFont(QFile&                      fontFile,
 
       // Assign name to font
       strncpy(fontConfig.Name,
-              std::format("{}:{}", fileInfo.fileName().toStdString(), fontSize)
+              fmt::format("{}:{}", fileInfo.fileName().toStdString(), fontSize)
                  .c_str(),
               sizeof(fontConfig.Name));
       fontConfig.Name[sizeof(fontConfig.Name) - 1] = 0;
diff --git a/wxdata/source/scwx/awips/ugc.cpp b/wxdata/source/scwx/awips/ugc.cpp
index f49ea36a..124e13b4 100644
--- a/wxdata/source/scwx/awips/ugc.cpp
+++ b/wxdata/source/scwx/awips/ugc.cpp
@@ -84,7 +84,7 @@ std::vector<std::string> Ugc::fips_ids() const
    {
       for (auto& id : fipsIdList.second)
       {
-         fipsIds.push_back(std::format("{}{}{:03}",
+         fipsIds.push_back(fmt::format("{}{}{:03}",
                                        fipsIdList.first,
                                        ugcFormatMap_.left.at(p->format_),
                                        id));
diff --git a/wxdata/source/scwx/common/geographic.cpp b/wxdata/source/scwx/common/geographic.cpp
index 651cae13..bf7d1a2c 100644
--- a/wxdata/source/scwx/common/geographic.cpp
+++ b/wxdata/source/scwx/common/geographic.cpp
@@ -1,9 +1,10 @@
 #include <scwx/common/geographic.hpp>
 #include <scwx/common/characters.hpp>
 
-#include <format>
 #include <numbers>
 
+#include <fmt/format.h>
+
 namespace scwx
 {
 namespace common
@@ -95,7 +96,7 @@ static std::string GetDegreeString(double             degrees,
    {
    case DegreeStringType::Decimal:
       degreeString =
-         std::format("{:.6f}{}{}", degrees, Unicode::kDegree, suffix);
+         fmt::format("{:.6f}{}{}", degrees, Unicode::kDegree, suffix);
       break;
    case DegreeStringType::DegreesMinutesSeconds:
    {
@@ -103,7 +104,7 @@ static std::string GetDegreeString(double             degrees,
       degrees      = (degrees - dd) * 60.0;
       uint32_t mm  = static_cast<uint32_t>(degrees);
       double   ss  = (degrees - mm) * 60.0;
-      degreeString = std::format(
+      degreeString = fmt::format(
          "{}{} {}' {:.2f}\"{}", dd, Unicode::kDegree, mm, ss, suffix);
       break;
    }