diff --git a/MicroPython_BUILD/components/micropython/docs/zones.csv b/MicroPython_BUILD/components/micropython/docs/zones.csv
index 5ce55ec..ae0bc5f 100644
--- a/MicroPython_BUILD/components/micropython/docs/zones.csv
+++ b/MicroPython_BUILD/components/micropython/docs/zones.csv
@@ -46,7 +46,7 @@
 "Africa/Nouakchott","GMT0"
 "Africa/Ouagadougou","GMT0"
 "Africa/Porto-Novo","WAT-1"
-"Africa/Sao_Tome","GMT0"
+"Africa/Sao_Tome","WAT-1"
 "Africa/Tripoli","EET-2"
 "Africa/Tunis","CET-1"
 "Africa/Windhoek","CAT-2"
@@ -80,7 +80,7 @@
 "America/Bogota","<-05>5"
 "America/Boise","MST7MDT,M3.2.0,M11.1.0"
 "America/Cambridge_Bay","MST7MDT,M3.2.0,M11.1.0"
-"America/Campo_Grande","<-04>4<-03>,M10.3.0/0,M2.3.0/0"
+"America/Campo_Grande","<-04>4<-03>,M11.1.0/0,M2.3.0/0"
 "America/Cancun","EST5"
 "America/Caracas","<-04>4"
 "America/Cayenne","<-03>3"
@@ -89,7 +89,7 @@
 "America/Chihuahua","MST7MDT,M4.1.0,M10.5.0"
 "America/Costa_Rica","CST6"
 "America/Creston","MST7"
-"America/Cuiaba","<-04>4<-03>,M10.3.0/0,M2.3.0/0"
+"America/Cuiaba","<-04>4<-03>,M11.1.0/0,M2.3.0/0"
 "America/Curacao","AST4"
 "America/Danmarkshavn","GMT0"
 "America/Dawson","PST8PDT,M3.2.0,M11.1.0"
@@ -177,7 +177,7 @@
 "America/Santarem","<-03>3"
 "America/Santiago","<-04>4<-03>,M8.2.6/24,M5.2.6/24"
 "America/Santo_Domingo","AST4"
-"America/Sao_Paulo","<-03>3<-02>,M10.3.0/0,M2.3.0/0"
+"America/Sao_Paulo","<-03>3<-02>,M11.1.0/0,M2.3.0/0"
 "America/Scoresbysund","<-01>1<+00>,M3.5.0/0,M10.5.0/1"
 "America/Sitka","AKST9AKDT,M3.2.0,M11.1.0"
 "America/St_Barthelemy","AST4"
@@ -198,7 +198,7 @@
 "America/Winnipeg","CST6CDT,M3.2.0,M11.1.0"
 "America/Yakutat","AKST9AKDT,M3.2.0,M11.1.0"
 "America/Yellowknife","MST7MDT,M3.2.0,M11.1.0"
-"Antarctica/Casey","<+11>-11"
+"Antarctica/Casey","<+08>-8"
 "Antarctica/Davis","<+07>-7"
 "Antarctica/DumontDUrville","<+10>-10"
 "Antarctica/Macquarie","<+11>-11"
@@ -235,8 +235,8 @@
 "Asia/Dubai","<+04>-4"
 "Asia/Dushanbe","<+05>-5"
 "Asia/Famagusta","EET-2EEST,M3.5.0/3,M10.5.0/4"
-"Asia/Gaza","EET-2EEST,M3.5.6/1,M10.5.6/1"
-"Asia/Hebron","EET-2EEST,M3.5.6/1,M10.5.6/1"
+"Asia/Gaza","EET-2EEST,M3.4.6/1,M10.5.6/1"
+"Asia/Hebron","EET-2EEST,M3.4.6/1,M10.5.6/1"
 "Asia/Ho_Chi_Minh","<+07>-7"
 "Asia/Hong_Kong","HKT-8"
 "Asia/Hovd","<+07>-7"
diff --git a/MicroPython_BUILD/components/micropython/esp32/modutime.c b/MicroPython_BUILD/components/micropython/esp32/modutime.c
index 6a8cdfa..386c3c5 100644
--- a/MicroPython_BUILD/components/micropython/esp32/modutime.c
+++ b/MicroPython_BUILD/components/micropython/esp32/modutime.c
@@ -171,7 +171,7 @@ STATIC mp_obj_t time_mktime(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t
 
     time_t seconds = mktime(&tm_inf);
 
-    return mp_obj_new_float((float)seconds);
+    return mp_obj_new_float((double)seconds);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(time_mktime_obj, 1, time_mktime);
 
diff --git a/MicroPython_BUILD/components/micropython/esp32/mpversion.h b/MicroPython_BUILD/components/micropython/esp32/mpversion.h
index a140a9f..25cae41 100644
--- a/MicroPython_BUILD/components/micropython/esp32/mpversion.h
+++ b/MicroPython_BUILD/components/micropython/esp32/mpversion.h
@@ -24,10 +24,10 @@
  * THE SOFTWARE.
  */
 
-#define MICROPY_GIT_TAG "ESP32_LoBo_v3.1.28"
+#define MICROPY_GIT_TAG "ESP32_LoBo_v3.1.29"
 #define MICROPY_GIT_HASH "g84788230"
-#define MICROPY_BUILD_DATE "2018-03-29"
+#define MICROPY_BUILD_DATE "2018-03-31"
 #define MICROPY_VERSION_MAJOR (3)
 #define MICROPY_VERSION_MINOR (1)
-#define MICROPY_VERSION_MICRO (28)
-#define MICROPY_VERSION_STRING "3.1.28"
+#define MICROPY_VERSION_MICRO (29)
+#define MICROPY_VERSION_STRING "3.1.29"
diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32.zip
index 779195a..046b4cf 100644
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diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_all.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_all.zip
index 9aafda5..a56abe7 100644
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diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_ota.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_ota.zip
index a189c4b..4e3e261 100644
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diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_psram.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_psram.zip
index 4c34c1c..c1065b4 100644
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diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_psram_all.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_esp32_psram_all.zip
index 7488a21..0830410 100644
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index 7f9db50..fa273ba 100644
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diff --git a/MicroPython_BUILD/firmware/esp32/MicroPython.bin b/MicroPython_BUILD/firmware/esp32/MicroPython.bin
index 938558b..e8b3cac 100644
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diff --git a/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin
index fc34b60..394e2ab 100644
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diff --git a/MicroPython_BUILD/firmware/esp32_all/MicroPython.bin b/MicroPython_BUILD/firmware/esp32_all/MicroPython.bin
index 0de7686..a41eeba 100644
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index 05f80d0..672846c 100644
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index 70bd91f..b89143c 100644
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