diff --git a/nvim/lua/juancwu/utils/colors.lua b/nvim/lua/juancwu/utils/colors.lua
index 7a05e2c..553ba36 100644
--- a/nvim/lua/juancwu/utils/colors.lua
+++ b/nvim/lua/juancwu/utils/colors.lua
@@ -5,7 +5,26 @@ local dark = "catppuccin-mocha"
 
 ---@return boolean
 function M.is_daytime()
-	local current_hour = tonumber(os.date("%H"))
+	-- check if command exists or not
+	local cmd_name = "asadesuka"
+	local cmd_flags = "-offset 30"
+	local has_asadesuka = require("juancwu.utils.os").cmd_exists(cmd_name)
+	if has_asadesuka then
+		local handle = io.popen(cmd_name .. " " .. cmd_flags)
+		if handle == nil then
+			return M.legacy_is_daytime()
+		end
+		local result = handle:read("*a")
+		handle:close()
+		return result:match("true")
+	else
+		return M.legacy_is_daytime()
+	end
+end
+
+---@return boolean
+function M.legacy_is_daytime()
+	local current_hour = tonumber(os.date("%h"))
 	return current_hour >= 7 and current_hour < 19
 end
 
diff --git a/nvim/lua/juancwu/utils/os.lua b/nvim/lua/juancwu/utils/os.lua
index 40a7596..f1cbbc9 100644
--- a/nvim/lua/juancwu/utils/os.lua
+++ b/nvim/lua/juancwu/utils/os.lua
@@ -3,22 +3,35 @@ local M = {}
 
 ---@return boolean
 function M.is_linux()
-    return vim.loop.os_uname().sysname:find("Linux") ~= nil
+	return vim.loop.os_uname().sysname:find("Linux") ~= nil
 end
 
 ---@return boolean
 function M.is_mac()
-    return vim.loop.os_uname().sysname:find("Darwin") ~= nil
+	return vim.loop.os_uname().sysname:find("Darwin") ~= nil
 end
 
 ---@return boolean
 function M.is_win()
-    return vim.loop.os_uname().sysname:find("Windows") ~= nil
+	return vim.loop.os_uname().sysname:find("Windows") ~= nil
 end
 
 ---@return boolean
 function M.is_wsl()
-    return vim.fn.has("wsl") == 1
+	return vim.fn.has("wsl") == 1
+end
+
+---@param cmd string
+---@return boolean
+function M.cmd_exists(cmd)
+	local handle = io.popen("command -v " .. cmd)
+	if handle ~= nil then
+		local result = handle:read("*a")
+		handle:close()
+		return #result > 0
+	else
+		return false
+	end
 end
 
 return M