Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@tsforge-mcp convert epoch 1735689600 to SQL timestamps for Postgres and MySQL"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Zero-dependency MCP server exposing 15 timestamp tools that LLMs compute unreliably — cron edge cases, the Excel 1900 leap-year bug, ISO-8601 duration arithmetic, multi-dialect SQL timestamp generation, business-day counting, and batch conversion.
One codebase, two transports:
stdio — Claude Desktop / local agents (MCP native)
http — ChatGPT Apps SDK / any remote MCP client (Streamable HTTP)
No npm dependencies. No network calls. Pure Node.js built-ins.
The official mcp-server-time ships only two tools (get_current_time, convert_time) — things an LLM can already do. The moat is everything an LLM gets wrong at the boundaries:
leap-day cron (29 Feb), the Excel 1900 leap-year bug (serial 60 → a non-existent date), ISO week rollovers, DST/timezone offsets, multi-dialect SQL, and holiday-aware business days.
sql_timestamp in particular targets a blue ocean: Google's AI Overview still only surfaces syntax docs (MS Learn / W3Schools / StackExchange) — no clean dedicated converter ranks for it yet.
Related MCP server: datetime-mcp
If you prefer a web UI, the same engine powers GotTimestamp.com — the dedicated SQL timestamp converter page built for this niche.
npm install -g tsforge-mcp
# or run directly
node server.mjs --transport stdioAdd to claude_desktop_config.json:
{
"mcpServers": {
"tsforge": {
"command": "node",
"args": ["/absolute/path/to/tsforge-mcp/server.mjs", "--transport", "stdio"]
}
}
}Deploy the HTTP server (any host that keeps a long-lived Node process, e.g. a container / VM):
node server.mjs --transport http --port 3000Expose it at a public HTTPS URL (reverse proxy / tunnel).
Submit the MCP server via the ChatGPT Apps SDK submission portal. Because the Apps SDK is built on MCP, the same server is callable from both ChatGPT and the Claude/MCP ecosystem.
tool | what it does |
| next N fire times of a 5-field cron, including |
| human-readable cron description |
| Excel serial ↔ date, handles the 1900 leap-year bug |
| add |
| correct SQL for epoch↔datetime across MySQL / Postgres / SQLite / SQL Server |
| weekdays between dates minus an optional holiday list |
| convert an array of epochs/dates in one call (enterprise batch) |
convert_timestamp (s/ms/us/ns) · timezone_convert · week_number (ISO) · relative_time · date_difference · add_subtract · age_calculator · timestamp_generate · date_info
node test_lib.mjs # boundary correctness (Excel bug, cron leap-day, ISO week…)
node test.mjs # MCP stdio handshake
node test_http.mjs # MCP Streamable HTTP handshake + tool callsRecent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
No tool schema history has been recorded yet.
This server cannot be installed
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If you are the server author, to access and configure the admin panel.
Deterministic time tools for AI agents: timezone conversion, business-day math, cron interpretation.
A time server that keeps your AI honest about time. Real clock + drift guard, zero dependencies.
Deterministic calendars and cosmic date JSON for AI agents via MCP (Gregorian 1900-2100).
Read-only developer, date, finance, and text utilities. Authless remote MCP server by Clean.tools.
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